1981
782 tornadoes, 3 tropical cyclones near the U.S., 6 notable earthquakes. 30 tornadoes were rated F3/EF3 or stronger and tornadoes killed 24.
Tornadoes
782 recorded; 30 rated F3/EF3 or stronger.
Strongest and deadliest first
| Apr 4, 1981 | F4 | Washington | 1.8 | 3 |
| Apr 22, 1981 | F4 | Dunklin, New Madrid, Mississippi | 63.0 | 1 |
| May 17, 1981 | F4 | Seminole, Okfuskee, Okmulgee | 33.6 | 0 |
| May 22, 1981 | F4 | Caddo, Canadian | 16.7 | 0 |
| Apr 3, 1981 | F4 | Madison | 11.9 | 0 |
| May 13, 1981 | F4 | Lamar | 8.8 | 0 |
| Mar 29, 1981 | F4 | Whiteside | 5.1 | 0 |
| Apr 19, 1981 | F3 | Tulsa | 9.9 | 5 |
| Jun 13, 1981 | F3 | Morrow | 3.8 | 4 |
| Apr 1, 1981 | F3 | Russell | 0.1 | 2 |
| Jun 14, 1981 | F3 | Hennepin, Ramsey | 16.2 | 1 |
| Jun 21, 1981 | F3 | Schuyler | 8.8 | 1 |
| Jun 19, 1981 | F3 | Douglas | 7.7 | 1 |
| Apr 22, 1981 | F3 | Jefferson | 7.1 | 1 |
| Jul 30, 1981 | F3 | Morton, Burleigh | 23.9 | 0 |
| May 17, 1981 | F3 | Seminole | 15.4 | 0 |
| May 9, 1981 | F3 | Anderson, Henderson | 15.0 | 0 |
| Aug 3, 1981 | F3 | Turner | 12.8 | 0 |
| May 22, 1981 | F3 | Custer | 10.3 | 0 |
| May 17, 1981 | F3 | Pottawatomie | 10.2 | 0 |
| May 23, 1981 | F3 | Bryan | 9.7 | 0 |
| Mar 19, 1981 | F3 | Orange | 8.0 | 0 |
| Oct 13, 1981 | F3 | Navarro | 7.2 | 0 |
| Jun 22, 1981 | F3 | Worcester | 7.1 | 0 |
| May 9, 1981 | F3 | Hill | 5.2 | 0 |
| Apr 19, 1981 | F3 | Tulsa | 4.9 | 0 |
| Jun 5, 1981 | F3 | Rapides | 4.3 | 0 |
| Jul 26, 1981 | F3 | Northampton | 3.3 | 0 |
| Apr 19, 1981 | F3 | Creek | 3.0 | 0 |
| Apr 19, 1981 | F3 | Tulsa | 0.5 | 0 |
| Apr 30, 1981 | F2 | Grady | 29.1 | 1 |
| Mar 30, 1981 | F2 | Hertford, Suffolk city | 21.9 | 1 |
| Feb 10, 1981 | F2 | Walker | 19.9 | 1 |
| Feb 11, 1981 | F2 | Hoke, Cumberland | 12.4 | 1 |
| Jun 21, 1981 | F2 | Warren | 6.5 | 1 |
| Jun 21, 1981 | F2 | Yellow Medicine, Redwood, Brown | 54.3 | 0 |
| Jun 15, 1981 | F2 | Jefferson, Waukesha | 28.7 | 0 |
| May 9, 1981 | F2 | Milam, Burleson | 22.3 | 0 |
| Jun 14, 1981 | F2 | Osceola, Dickinson | 21.9 | 0 |
| Jun 14, 1981 | F2 | Osceola, Dickinson | 21.6 | 0 |
| May 23, 1981 | F2 | Ringgold | 15.9 | 0 |
| May 22, 1981 | F2 | Kiowa, Washita, Caddo | 15.4 | 0 |
| May 23, 1981 | F2 | Washington, Nowata | 15.2 | 0 |
| May 13, 1981 | F2 | Columbia | 14.6 | 0 |
| Mar 31, 1981 | F2 | Pike, Walthall | 13.7 | 0 |
| Apr 23, 1981 | F2 | Jefferson | 13.4 | 0 |
| May 16, 1981 | F2 | Desha, Lincoln | 12.5 | 0 |
| May 22, 1981 | F2 | Custer | 10.4 | 0 |
| May 9, 1981 | F2 | Anderson | 9.9 | 0 |
| May 16, 1981 | F2 | Burleson | 9.7 | 0 |
| May 9, 1981 | F2 | Hill | 9.6 | 0 |
| Jun 6, 1981 | F2 | Forsyth | 9.4 | 0 |
| May 24, 1981 | F2 | Cape Girardeau, Scott | 9.1 | 0 |
| Jun 22, 1981 | F2 | Strafford | 8.7 | 0 |
| Apr 3, 1981 | F2 | Lancaster | 8.3 | 0 |
| Mar 31, 1981 | F2 | Covington, Jones | 8.2 | 0 |
| May 15, 1981 | F2 | San Saba | 8.0 | 0 |
| May 9, 1981 | F2 | Gregg | 7.7 | 0 |
| Feb 11, 1981 | F2 | Moore | 7.6 | 0 |
| May 3, 1981 | F2 | Brazoria | 7.2 | 0 |
| May 18, 1981 | F2 | Nacogdoches | 7.1 | 0 |
| May 18, 1981 | F2 | Madison | 7.1 | 0 |
| Oct 25, 1981 | F2 | Calhoun | 6.9 | 0 |
| Apr 11, 1981 | F2 | Taylor | 6.9 | 0 |
| May 22, 1981 | F2 | Washita | 6.9 | 0 |
| Jun 23, 1981 | F2 | Renville | 6.8 | 0 |
| Oct 13, 1981 | F2 | Lamar | 6.6 | 0 |
| May 13, 1981 | F2 | Wood | 6.5 | 0 |
| Jul 28, 1981 | F2 | Washington, Pleasants | 6.2 | 0 |
| May 7, 1981 | F2 | Crosby | 6.1 | 0 |
| Jun 1, 1981 | F2 | Collingsworth | 5.7 | 0 |
| Apr 10, 1981 | F2 | Marshall | 5.6 | 0 |
| Mar 19, 1981 | F2 | Osceola | 5.4 | 0 |
| May 13, 1981 | F2 | Van Zandt, Wood | 5.4 | 0 |
| Feb 11, 1981 | F2 | Moore | 5.2 | 0 |
| May 9, 1981 | F2 | Montgomery | 5.1 | 0 |
| May 22, 1981 | F2 | Washita, Caddo | 5.0 | 0 |
| May 17, 1981 | F2 | Denton | 4.9 | 0 |
| May 8, 1981 | F2 | Dallas | 4.9 | 0 |
| Dec 15, 1981 | F2 | Pinellas | 4.7 | 0 |
| May 27, 1981 | F2 | Florence | 4.7 | 0 |
| May 13, 1981 | F2 | Coal | 4.5 | 0 |
| May 23, 1981 | F2 | Nowata | 4.5 | 0 |
| Jun 9, 1981 | F2 | Mason | 4.1 | 0 |
| Jul 20, 1981 | F2 | Northampton | 4.1 | 0 |
| May 23, 1981 | F2 | Mitchell | 3.8 | 0 |
| Jun 8, 1981 | F2 | Knox | 3.8 | 0 |
| Apr 19, 1981 | F2 | Creek | 3.6 | 0 |
| Jul 20, 1981 | F2 | Morris | 3.6 | 0 |
| Feb 11, 1981 | F2 | Nash | 3.3 | 0 |
| May 9, 1981 | F2 | Fort Bend | 3.3 | 0 |
| Jun 15, 1981 | F2 | Creek | 3.3 | 0 |
| Mar 25, 1981 | F2 | Morrison | 3.0 | 0 |
| Jun 14, 1981 | F2 | Wright | 2.9 | 0 |
| Oct 13, 1981 | F2 | Johnson | 2.7 | 0 |
| Oct 13, 1981 | F2 | Hill | 2.7 | 0 |
| May 17, 1981 | F2 | Seminole | 2.7 | 0 |
| May 7, 1981 | F2 | Crosby | 2.7 | 0 |
| Jun 5, 1981 | F2 | Galveston | 2.7 | 0 |
| Jun 14, 1981 | F2 | Iron, Dickinson | 2.6 | 0 |
| Feb 10, 1981 | F2 | Grimes | 2.5 | 0 |
| Jun 13, 1981 | F2 | Muskingum | 2.3 | 0 |
| Jun 22, 1981 | F2 | Orleans | 2.3 | 0 |
| Jun 3, 1981 | F2 | Adams | 2.3 | 0 |
| Jun 8, 1981 | F2 | Holmes | 2.3 | 0 |
| Oct 13, 1981 | F2 | McLennan | 2.0 | 0 |
| May 24, 1981 | F2 | Maverick | 2.0 | 0 |
| Jun 13, 1981 | F2 | Perry | 2.0 | 0 |
| Jun 13, 1981 | F2 | Isanti | 2.0 | 0 |
| Jun 14, 1981 | F2 | Le Sueur | 2.0 | 0 |
| Jun 3, 1981 | F2 | Terry | 2.0 | 0 |
| Jul 25, 1981 | F2 | Peoria | 2.0 | 0 |
| Jul 28, 1981 | F2 | Crawford | 2.0 | 0 |
| Feb 11, 1981 | F2 | Wake | 1.9 | 0 |
| May 17, 1981 | F2 | Oklahoma | 1.9 | 0 |
| Apr 3, 1981 | F2 | Doniphan | 1.8 | 0 |
| Oct 15, 1981 | F2 | Ector | 1.5 | 0 |
| Oct 17, 1981 | F2 | Hardeman | 1.5 | 0 |
| Feb 10, 1981 | F2 | Baldwin | 1.5 | 0 |
| May 15, 1981 | F2 | Cecil | 1.5 | 0 |
| May 23, 1981 | F2 | Anderson | 1.5 | 0 |
| May 28, 1981 | F2 | Fergus | 1.5 | 0 |
| May 7, 1981 | F2 | Crosby | 1.5 | 0 |
| May 9, 1981 | F2 | Galveston | 1.5 | 0 |
| Jun 20, 1981 | F2 | Berrien | 1.5 | 0 |
| Jun 5, 1981 | F2 | Chambers | 1.5 | 0 |
| Jun 8, 1981 | F2 | Shelby | 1.3 | 0 |
| Sep 15, 1981 | F2 | Northampton | 1.3 | 0 |
| Mar 17, 1981 | F2 | Grayson | 1.0 | 0 |
| May 13, 1981 | F2 | Fannin | 1.0 | 0 |
| May 18, 1981 | F2 | Nacogdoches | 1.0 | 0 |
| May 7, 1981 | F2 | Crosby | 1.0 | 0 |
| Jun 15, 1981 | F2 | Dane | 1.0 | 0 |
| Jun 21, 1981 | F2 | Marion | 1.0 | 0 |
| Jun 23, 1981 | F2 | Redwood | 1.0 | 0 |
| Jun 23, 1981 | F2 | Faribault | 1.0 | 0 |
| Jul 20, 1981 | F2 | Montgomery | 1.0 | 0 |
| Aug 24, 1981 | F2 | Logan | 1.0 | 0 |
| Aug 5, 1981 | F2 | Taylor | 1.0 | 0 |
| Oct 26, 1981 | F2 | Warren | 0.8 | 0 |
| Feb 10, 1981 | F2 | Williamson | 0.8 | 0 |
| Apr 10, 1981 | F2 | Bremer | 0.8 | 0 |
| Aug 5, 1981 | F2 | Clearwater | 0.8 | 0 |
| Oct 17, 1981 | F2 | Saline | 0.5 | 0 |
| Feb 10, 1981 | F2 | Jackson | 0.5 | 0 |
| Mar 18, 1981 | F2 | Seminole | 0.5 | 0 |
| Apr 28, 1981 | F2 | Butler | 0.5 | 0 |
| May 17, 1981 | F2 | Cowley | 0.5 | 0 |
| Jun 14, 1981 | F2 | Pierce | 0.5 | 0 |
| Jun 3, 1981 | F2 | Concordia | 0.5 | 0 |
| Jul 21, 1981 | F2 | Kiowa | 0.5 | 0 |
| Jul 19, 1981 | F2 | Shawnee | 0.3 | 0 |
| May 11, 1981 | F2 | Middlesex | 0.2 | 0 |
| Aug 4, 1981 | F2 | Garfield | 0.2 | 0 |
| Apr 13, 1981 | F2 | McLean | 0.1 | 0 |
| Apr 29, 1981 | F2 | Olmsted | 0.1 | 0 |
| Apr 29, 1981 | F2 | Carbon | 0.1 | 0 |
| Apr 4, 1981 | F2 | Calumet | 0.1 | 0 |
| May 17, 1981 | F2 | Osage | 0.1 | 0 |
| May 17, 1981 | F2 | Muskogee | 0.1 | 0 |
| May 18, 1981 | F2 | Hickman | 0.1 | 0 |
| May 22, 1981 | F2 | Blaine | 0.1 | 0 |
| May 23, 1981 | F2 | Delaware | 0.1 | 0 |
| Jun 10, 1981 | F2 | Madison | 0.1 | 0 |
| Jun 12, 1981 | F2 | Humboldt | 0.1 | 0 |
| Jun 13, 1981 | F2 | Sioux | 0.1 | 0 |
| Jun 13, 1981 | F2 | Oneida | 0.1 | 0 |
| Jun 3, 1981 | F2 | Jefferson, Denver | 0.1 | 0 |
| Jun 5, 1981 | F2 | Cameron | 0.1 | 0 |
| Jun 5, 1981 | F2 | Rapides | 0.1 | 0 |
| Jun 5, 1981 | F2 | Rapides | 0.1 | 0 |
| Jul 20, 1981 | F2 | Butler | 0.1 | 0 |
| Jul 22, 1981 | F2 | Hamlin | 0.1 | 0 |
| Jul 26, 1981 | F2 | Indiana | 0.1 | 0 |
| Jul 26, 1981 | F2 | Schuylkill | 0.1 | 0 |
| Jul 28, 1981 | F2 | Fairfax | 0.1 | 0 |
| Aug 5, 1981 | F2 | Renville | 0.1 | 0 |
| Aug 7, 1981 | F2 | Venango | 0.1 | 0 |
| Sep 26, 1981 | F2 | Clay | 0.1 | 0 |
| Apr 13, 1981 | F1 | Fulton, Mason, Logan | 46.1 | 0 |
| Apr 13, 1981 | F1 | Woodford, McLean | 34.5 | 0 |
| May 16, 1981 | F1 | Haskell, Gray | 32.3 | 0 |
| Apr 30, 1981 | F1 | Caddo, Grady | 31.9 | 0 |
| Apr 13, 1981 | F1 | Saline, Howard | 30.1 | 0 |
| May 16, 1981 | F1 | Union | 24.5 | 0 |
| Jul 16, 1981 | F1 | Kay | 21.5 | 0 |
| Jun 8, 1981 | F1 | Lake, Jasper | 20.9 | 0 |
| Apr 4, 1981 | F1 | Scott, Clinton | 20.5 | 0 |
| May 16, 1981 | F1 | Union | 20.1 | 0 |
| May 18, 1981 | F1 | Columbia, Union | 19.0 | 0 |
| May 16, 1981 | F1 | Burnet, Travis, Williamson | 16.9 | 0 |
| Jun 21, 1981 | F1 | Watonwan | 15.6 | 0 |
| Jun 13, 1981 | F1 | Lincoln | 14.4 | 0 |
| Mar 18, 1981 | F1 | Clay | 13.8 | 0 |
| Aug 31, 1981 | F1 | Galveston | 12.9 | 0 |
| May 16, 1981 | F1 | Columbia | 10.5 | 0 |
| May 16, 1981 | F1 | Grant | 9.9 | 0 |
| Jun 6, 1981 | F1 | Rockingham | 9.0 | 0 |
| Jun 13, 1981 | F1 | Madison | 8.8 | 0 |
| Jun 8, 1981 | F1 | Ashland, Wayne | 8.6 | 0 |
| Apr 21, 1981 | F1 | Palo Pinto | 7.7 | 0 |
| Jul 19, 1981 | F1 | Charles Mix, Bon Homme | 7.5 | 0 |
| Feb 10, 1981 | F1 | Houston | 7.4 | 0 |
| May 17, 1981 | F1 | Harper | 7.2 | 0 |
| Apr 15, 1981 | F1 | Marion | 6.9 | 0 |
| May 23, 1981 | F1 | Linn | 6.5 | 0 |
| Oct 13, 1981 | F1 | Henderson | 6.2 | 0 |
| Oct 13, 1981 | F1 | Kaufman, Van Zandt | 5.7 | 0 |
| Oct 13, 1981 | F1 | Johnson | 5.7 | 0 |
| Oct 22, 1981 | F1 | Goliad | 5.7 | 0 |
| Aug 2, 1981 | F1 | Beltrami | 5.7 | 0 |
| Oct 13, 1981 | F1 | Hunt | 5.6 | 0 |
| Jun 29, 1981 | F1 | Iosco | 5.6 | 0 |
| Apr 3, 1981 | F1 | Polk | 5.1 | 0 |
| Jun 18, 1981 | F1 | Citrus | 5.1 | 0 |
| Apr 4, 1981 | F1 | Rock Island | 4.9 | 0 |
| Jun 13, 1981 | F1 | Muskingum | 4.9 | 0 |
| Jun 23, 1981 | F1 | Marshall | 4.9 | 0 |
| Nov 19, 1981 | F1 | Ripley | 4.7 | 0 |
| Jun 8, 1981 | F1 | Morrow | 4.7 | 0 |
| May 17, 1981 | F1 | McClain, Cleveland | 4.2 | 0 |
| Mar 7, 1981 | F1 | Baylor | 4.1 | 0 |
| May 16, 1981 | F1 | Burnet | 3.6 | 0 |
| Jun 22, 1981 | F1 | Barton | 3.6 | 0 |
| Jun 6, 1981 | F1 | Person | 3.6 | 0 |
| Jul 19, 1981 | F1 | Stanton | 3.6 | 0 |
| Mar 18, 1981 | F1 | Telfair, Wheeler | 3.3 | 0 |
| Mar 18, 1981 | F1 | Webster | 3.3 | 0 |
| Jun 14, 1981 | F1 | Blue Earth | 3.3 | 0 |
| Jun 21, 1981 | F1 | Luzerne | 3.3 | 0 |
| Jun 6, 1981 | F1 | Warren | 3.3 | 0 |
| Apr 1, 1981 | F1 | Clay | 3.0 | 0 |
| Apr 3, 1981 | F1 | Iowa | 2.7 | 0 |
| Jun 21, 1981 | F1 | Van Wert, Allen | 2.7 | 0 |
| Nov 19, 1981 | F1 | Clayton | 2.5 | 0 |
| May 24, 1981 | F1 | Wilbarger | 2.5 | 0 |
| Jun 15, 1981 | F1 | Pettis | 2.3 | 0 |
| Jun 21, 1981 | F1 | Darke | 2.3 | 0 |
| Jun 8, 1981 | F1 | Holmes | 2.3 | 0 |
| Aug 5, 1981 | F1 | Suffolk | 2.3 | 0 |
| Nov 8, 1981 | F1 | Johnson | 2.0 | 0 |
| Feb 10, 1981 | F1 | Brazos | 2.0 | 0 |
| Feb 11, 1981 | F1 | Lexington | 2.0 | 0 |
| Mar 18, 1981 | F1 | Jefferson | 2.0 | 0 |
| Apr 13, 1981 | F1 | Muskingum | 2.0 | 0 |
| Apr 13, 1981 | F1 | Whitley | 2.0 | 0 |
| Apr 19, 1981 | F1 | Chester | 2.0 | 0 |
| Apr 20, 1981 | F1 | Tom Green | 2.0 | 0 |
| Apr 3, 1981 | F1 | Choctaw | 2.0 | 0 |
| May 13, 1981 | F1 | Atoka | 2.0 | 0 |
| May 15, 1981 | F1 | McCulloch | 2.0 | 0 |
| May 17, 1981 | F1 | Osage | 2.0 | 0 |
| May 22, 1981 | F1 | Canadian | 2.0 | 0 |
| May 23, 1981 | F1 | Garvin | 2.0 | 0 |
| May 29, 1981 | F1 | Montague | 2.0 | 0 |
| May 1, 1981 | F1 | Brevard | 2.0 | 0 |
| Jun 14, 1981 | F1 | Blue Earth | 2.0 | 0 |
| Jun 21, 1981 | F1 | Lac qui Parle | 2.0 | 0 |
| Jun 22, 1981 | F1 | Mahoning | 2.0 | 0 |
| Jun 23, 1981 | F1 | La Crosse | 2.0 | 0 |
| Jun 6, 1981 | F1 | Henderson | 2.0 | 0 |
| Jul 8, 1981 | F1 | Suwannee | 2.0 | 0 |
| Aug 29, 1981 | F1 | Hidalgo | 2.0 | 0 |
| Sep 5, 1981 | F1 | Pinal | 2.0 | 0 |
| Sep 8, 1981 | F1 | Monroe | 2.0 | 0 |
| Jun 21, 1981 | F1 | Union | 1.9 | 0 |
| Feb 10, 1981 | F1 | Okaloosa | 1.5 | 0 |
| Jul 15, 1981 | F1 | Ramsey | 1.5 | 0 |
| Jun 5, 1981 | F1 | Galveston | 1.2 | 0 |
| Apr 21, 1981 | F1 | Bonneville | 1.1 | 0 |
| Oct 13, 1981 | F1 | Llano | 1.0 | 0 |
| Oct 13, 1981 | F1 | Tarrant | 1.0 | 0 |
| Oct 13, 1981 | F1 | Dallas | 1.0 | 0 |
| Mar 18, 1981 | F1 | Stewart | 1.0 | 0 |
| Mar 30, 1981 | F1 | Dallas | 1.0 | 0 |
| Apr 12, 1981 | F1 | Kiowa | 1.0 | 0 |
| Apr 13, 1981 | F1 | Holt | 1.0 | 0 |
| Apr 13, 1981 | F1 | Gentry | 1.0 | 0 |
| Apr 22, 1981 | F1 | Crane | 1.0 | 0 |
| Apr 22, 1981 | F1 | Scott | 1.0 | 0 |
| Apr 22, 1981 | F1 | Scott | 1.0 | 0 |
| May 10, 1981 | F1 | Rockdale | 1.0 | 0 |
| May 15, 1981 | F1 | Irion | 1.0 | 0 |
| May 17, 1981 | F1 | Garfield | 1.0 | 0 |
| May 17, 1981 | F1 | Cleveland | 1.0 | 0 |
| May 17, 1981 | F1 | Polk | 1.0 | 0 |
| May 20, 1981 | F1 | Broward | 1.0 | 0 |
| May 22, 1981 | F1 | Washita | 1.0 | 0 |
| May 25, 1981 | F1 | East Feliciana | 1.0 | 0 |
| May 7, 1981 | F1 | Miami-Dade | 1.0 | 0 |
| May 7, 1981 | F1 | Brewster | 1.0 | 0 |
| May 8, 1981 | F1 | Hemphill | 1.0 | 0 |
| May 9, 1981 | F1 | Bell | 1.0 | 0 |
| Jun 13, 1981 | F1 | Montgomery | 1.0 | 0 |
| Jun 13, 1981 | F1 | Logan | 1.0 | 0 |
| Jun 15, 1981 | F1 | Jackson | 1.0 | 0 |
| Jun 16, 1981 | F1 | Portage | 1.0 | 0 |
| Jun 20, 1981 | F1 | McLean | 1.0 | 0 |
| Jun 20, 1981 | F1 | Pettis | 1.0 | 0 |
| Jun 23, 1981 | F1 | Calhoun | 1.0 | 0 |
| Jun 24, 1981 | F1 | Tippecanoe | 1.0 | 0 |
| Jun 2, 1981 | F1 | Collingsworth | 1.0 | 0 |
| Jun 3, 1981 | F1 | Oklahoma | 1.0 | 0 |
| Jun 3, 1981 | F1 | Lynn | 1.0 | 0 |
| Jul 20, 1981 | F1 | Jefferson | 1.0 | 0 |
| Jul 25, 1981 | F1 | Morgan | 1.0 | 0 |
| Jul 26, 1981 | F1 | Baca | 1.0 | 0 |
| Jul 30, 1981 | F1 | Comanche | 1.0 | 0 |
| Jul 8, 1981 | F1 | Lake | 1.0 | 0 |
| Aug 27, 1981 | F1 | Dunklin | 1.0 | 0 |
| Aug 30, 1981 | F1 | Live Oak | 1.0 | 0 |
| Sep 13, 1981 | F1 | Marshall | 1.0 | 0 |
| Sep 5, 1981 | F1 | Maricopa | 1.0 | 0 |
| Sep 5, 1981 | F1 | Maricopa | 1.0 | 0 |
| Sep 8, 1981 | F1 | Somerset | 1.0 | 0 |
| Jun 3, 1981 | F1 | Weld | 0.9 | 0 |
| Jul 20, 1981 | F1 | Milwaukee | 0.9 | 0 |
| Oct 14, 1981 | F1 | Montgomery | 0.8 | 0 |
| Feb 11, 1981 | F1 | Richland | 0.8 | 0 |
| Jun 6, 1981 | F1 | Marshall | 0.8 | 0 |
| Jul 17, 1981 | F1 | Power | 0.8 | 0 |
| Aug 30, 1981 | F1 | Bee | 0.8 | 0 |
| Aug 6, 1981 | F1 | Frontier | 0.8 | 0 |
| Nov 19, 1981 | F1 | Kenton | 0.5 | 0 |
| Feb 11, 1981 | F1 | Lake | 0.5 | 0 |
| Feb 2, 1981 | F1 | Hillsborough | 0.5 | 0 |
| Apr 29, 1981 | F1 | Dakota | 0.5 | 0 |
| May 15, 1981 | F1 | Tom Green | 0.5 | 0 |
| May 17, 1981 | F1 | Noble | 0.5 | 0 |
| May 23, 1981 | F1 | Montgomery | 0.5 | 0 |
| May 3, 1981 | F1 | Harris | 0.5 | 0 |
| May 6, 1981 | F1 | Cache | 0.5 | 0 |
| May 9, 1981 | F1 | Navarro | 0.5 | 0 |
| Jun 13, 1981 | F1 | Kandiyohi | 0.5 | 0 |
| Jun 13, 1981 | F1 | Hillsborough | 0.5 | 0 |
| Jun 13, 1981 | F1 | Polk | 0.5 | 0 |
| Jun 13, 1981 | F1 | Cottonwood | 0.5 | 0 |
| Jun 13, 1981 | F1 | Morgan | 0.5 | 0 |
| Jun 17, 1981 | F1 | Pasco | 0.5 | 0 |
| Jun 21, 1981 | F1 | Knox | 0.5 | 0 |
| Jun 21, 1981 | F1 | Orange | 0.5 | 0 |
| Jun 2, 1981 | F1 | Adams | 0.5 | 0 |
| Jul 10, 1981 | F1 | Livingston | 0.5 | 0 |
| Jul 14, 1981 | F1 | Sherman | 0.5 | 0 |
| Jul 15, 1981 | F1 | Marion | 0.5 | 0 |
| Jul 17, 1981 | F1 | Seward | 0.5 | 0 |
| Jul 19, 1981 | F1 | Trego | 0.5 | 0 |
| Jul 19, 1981 | F1 | Trego | 0.5 | 0 |
| Jul 20, 1981 | F1 | Tulsa | 0.5 | 0 |
| Jul 21, 1981 | F1 | Mayes | 0.5 | 0 |
| Jul 23, 1981 | F1 | Assumption | 0.5 | 0 |
| Jul 25, 1981 | F1 | Jefferson | 0.5 | 0 |
| Jul 30, 1981 | F1 | Hillsborough | 0.5 | 0 |
| Jul 2, 1981 | F1 | Trego | 0.5 | 0 |
| Jul 3, 1981 | F1 | Ellsworth | 0.5 | 0 |
| Jul 8, 1981 | F1 | Woods | 0.5 | 0 |
| Aug 2, 1981 | F1 | Cass | 0.5 | 0 |
| Aug 6, 1981 | F1 | Pueblo | 0.5 | 0 |
| Mar 18, 1981 | F1 | Montgomery | 0.4 | 0 |
| Mar 30, 1981 | F1 | Clay | 0.4 | 0 |
| Apr 17, 1981 | F1 | Robertson | 0.4 | 0 |
| May 3, 1981 | F1 | Burleson | 0.4 | 0 |
| Aug 31, 1981 | F1 | Brazoria | 0.4 | 0 |
| Oct 7, 1981 | F1 | Bexar | 0.3 | 0 |
| Feb 1, 1981 | F1 | Bay | 0.3 | 0 |
| Feb 2, 1981 | F1 | Martin | 0.3 | 0 |
| Mar 18, 1981 | F1 | Bullock | 0.3 | 0 |
| Mar 4, 1981 | F1 | Pike | 0.3 | 0 |
| Apr 17, 1981 | F1 | Seneca | 0.3 | 0 |
| Apr 20, 1981 | F1 | Orangeburg | 0.3 | 0 |
| Apr 20, 1981 | F1 | Richland | 0.3 | 0 |
| Apr 1, 1981 | F1 | Sumter | 0.3 | 0 |
| May 31, 1981 | F1 | Weld | 0.3 | 0 |
| Jun 28, 1981 | F1 | Morrison | 0.3 | 0 |
| Jun 28, 1981 | F1 | Kanabec | 0.3 | 0 |
| Jun 30, 1981 | F1 | Cleveland | 0.3 | 0 |
| Jun 3, 1981 | F1 | Weld | 0.3 | 0 |
| Jun 3, 1981 | F1 | Douglas | 0.3 | 0 |
| Jul 21, 1981 | F1 | Sheridan | 0.3 | 0 |
| Jul 26, 1981 | F1 | Orangeburg | 0.3 | 0 |
| Jul 7, 1981 | F1 | Deaf Smith | 0.3 | 0 |
| Aug 24, 1981 | F1 | Manatee | 0.3 | 0 |
| Aug 25, 1981 | F1 | Henry | 0.3 | 0 |
| Aug 31, 1981 | F1 | Brazoria | 0.3 | 0 |
| Aug 5, 1981 | F1 | Wright | 0.3 | 0 |
| Aug 7, 1981 | F1 | Hampton | 0.3 | 0 |
| Mar 30, 1981 | F1 | Dallas | 0.2 | 0 |
| Apr 23, 1981 | F1 | Harris | 0.2 | 0 |
| May 17, 1981 | F1 | Cowley | 0.2 | 0 |
| May 31, 1981 | F1 | Matagorda | 0.2 | 0 |
| May 31, 1981 | F1 | Weld | 0.2 | 0 |
| Jun 13, 1981 | F1 | Travis | 0.2 | 0 |
| Jun 3, 1981 | F1 | Weld | 0.2 | 0 |
| Jun 3, 1981 | F1 | Weld | 0.2 | 0 |
| Jul 14, 1981 | F1 | Seward | 0.2 | 0 |
| Aug 29, 1981 | F1 | San Patricio | 0.2 | 0 |
| Aug 4, 1981 | F1 | Valley | 0.2 | 0 |
| Sep 6, 1981 | F1 | Ellis | 0.2 | 0 |
| Oct 11, 1981 | F1 | Harris | 0.1 | 0 |
| Oct 13, 1981 | F1 | Johnson | 0.1 | 0 |
| Oct 13, 1981 | F1 | Lamar | 0.1 | 0 |
| Oct 13, 1981 | F1 | Choctaw | 0.1 | 0 |
| Oct 16, 1981 | F1 | Grayson | 0.1 | 0 |
| Oct 17, 1981 | F1 | Jefferson | 0.1 | 0 |
| Oct 17, 1981 | F1 | Lake | 0.1 | 0 |
| Nov 13, 1981 | F1 | Bell | 0.1 | 0 |
| Feb 11, 1981 | F1 | Chesterfield | 0.1 | 0 |
| Feb 21, 1981 | F1 | Upshur | 0.1 | 0 |
| Feb 21, 1981 | F1 | Cass | 0.1 | 0 |
| Feb 21, 1981 | F1 | Marion | 0.1 | 0 |
| Feb 2, 1981 | F1 | Dillon | 0.1 | 0 |
| Feb 2, 1981 | F1 | Dillon | 0.1 | 0 |
| Mar 22, 1981 | F1 | Baldwin | 0.1 | 0 |
| Mar 28, 1981 | F1 | Logan | 0.1 | 0 |
| Mar 28, 1981 | F1 | Sheridan | 0.1 | 0 |
| Mar 29, 1981 | F1 | Bowie | 0.1 | 0 |
| Mar 29, 1981 | F1 | Cass | 0.1 | 0 |
| Apr 13, 1981 | F1 | McLean | 0.1 | 0 |
| Apr 28, 1981 | F1 | Marion | 0.1 | 0 |
| Apr 3, 1981 | F1 | Wabaunsee | 0.1 | 0 |
| Apr 3, 1981 | F1 | Dodge | 0.1 | 0 |
| May 11, 1981 | F1 | Jefferson | 0.1 | 0 |
| May 11, 1981 | F1 | Morgan | 0.1 | 0 |
| May 13, 1981 | F1 | Coal | 0.1 | 0 |
| May 13, 1981 | F1 | Pushmataha | 0.1 | 0 |
| May 13, 1981 | F1 | Garland | 0.1 | 0 |
| May 13, 1981 | F1 | Smith | 0.1 | 0 |
| May 13, 1981 | F1 | Henderson | 0.1 | 0 |
| May 15, 1981 | F1 | Lampasas | 0.1 | 0 |
| May 16, 1981 | F1 | Prowers | 0.1 | 0 |
| May 18, 1981 | F1 | Trinity | 0.1 | 0 |
| May 18, 1981 | F1 | Marshall | 0.1 | 0 |
| May 20, 1981 | F1 | Broward | 0.1 | 0 |
| May 20, 1981 | F1 | Broward | 0.1 | 0 |
| May 22, 1981 | F1 | Custer | 0.1 | 0 |
| May 22, 1981 | F1 | Custer | 0.1 | 0 |
| May 23, 1981 | F1 | Osage | 0.1 | 0 |
| May 23, 1981 | F1 | Creek | 0.1 | 0 |
| May 23, 1981 | F1 | Murray | 0.1 | 0 |
| May 23, 1981 | F1 | Pottawatomie | 0.1 | 0 |
| May 23, 1981 | F1 | Madison | 0.1 | 0 |
| May 23, 1981 | F1 | Pottawatomie | 0.1 | 0 |
| May 23, 1981 | F1 | Bryan | 0.1 | 0 |
| May 28, 1981 | F1 | Muskogee | 0.1 | 0 |
| May 28, 1981 | F1 | Denver | 0.1 | 0 |
| May 28, 1981 | F1 | Kiowa | 0.1 | 0 |
| May 9, 1981 | F1 | Henderson | 0.1 | 0 |
| May 9, 1981 | F1 | Panola | 0.1 | 0 |
| May 9, 1981 | F1 | Gregg | 0.1 | 0 |
| May 9, 1981 | F1 | Trinity | 0.1 | 0 |
| May 9, 1981 | F1 | Acadia | 0.1 | 0 |
| May 9, 1981 | F1 | Iberia | 0.1 | 0 |
| Jun 10, 1981 | F1 | Henderson | 0.1 | 0 |
| Jun 13, 1981 | F1 | Oneida | 0.1 | 0 |
| Jun 13, 1981 | F1 | Oneida | 0.1 | 0 |
| Jun 13, 1981 | F1 | Vilas | 0.1 | 0 |
| Jun 15, 1981 | F1 | Dodge | 0.1 | 0 |
| Jun 15, 1981 | F1 | Hamilton | 0.1 | 0 |
| Jun 15, 1981 | F1 | Hamilton | 0.1 | 0 |
| Jun 20, 1981 | F1 | McLean | 0.1 | 0 |
| Jun 21, 1981 | F1 | Beaver | 0.1 | 0 |
| Jun 21, 1981 | F1 | Allegheny | 0.1 | 0 |
| Jun 21, 1981 | F1 | Burlington | 0.1 | 0 |
| Jun 21, 1981 | F1 | Hancock | 0.1 | 0 |
| Jun 21, 1981 | F1 | Hancock | 0.1 | 0 |
| Jun 22, 1981 | F1 | Cambria | 0.1 | 0 |
| Jun 22, 1981 | F1 | Roosevelt | 0.1 | 0 |
| Jun 22, 1981 | F1 | Spokane | 0.1 | 0 |
| Jun 23, 1981 | F1 | Yellow Medicine | 0.1 | 0 |
| Jun 23, 1981 | F1 | San Miguel | 0.1 | 0 |
| Jun 29, 1981 | F1 | Chaves | 0.1 | 0 |
| Jun 5, 1981 | F1 | West Feliciana | 0.1 | 0 |
| Jun 6, 1981 | F1 | Oxford | 0.1 | 0 |
| Jun 7, 1981 | F1 | Clarke | 0.1 | 0 |
| Jun 7, 1981 | F1 | Wayne | 0.1 | 0 |
| Jun 8, 1981 | F1 | Tazewell | 0.1 | 0 |
| Jun 8, 1981 | F1 | Champaign | 0.1 | 0 |
| Jun 8, 1981 | F1 | De Witt | 0.1 | 0 |
| Jun 8, 1981 | F1 | Champaign | 0.1 | 0 |
| Jul 14, 1981 | F1 | Chippewa | 0.1 | 0 |
| Jul 20, 1981 | F1 | Fond du Lac | 0.1 | 0 |
| Jul 24, 1981 | F1 | Big Horn | 0.1 | 0 |
| Jul 26, 1981 | F1 | Cambria | 0.1 | 0 |
| Jul 26, 1981 | F1 | Cambria | 0.1 | 0 |
| Jul 4, 1981 | F1 | Lenoir | 0.1 | 0 |
| Jul 4, 1981 | F1 | Virginia Beach city | 0.1 | 0 |
| Jul 5, 1981 | F1 | Eddy | 0.1 | 0 |
| Aug 11, 1981 | F1 | Lafourche | 0.1 | 0 |
| Aug 15, 1981 | F1 | Jackson | 0.1 | 0 |
| Aug 17, 1981 | F1 | Howard | 0.1 | 0 |
| Aug 20, 1981 | F1 | Brevard | 0.1 | 0 |
| Aug 26, 1981 | F1 | Sarasota | 0.1 | 0 |
| Aug 3, 1981 | F1 | Potter | 0.1 | 0 |
| Aug 3, 1981 | F1 | Potter | 0.1 | 0 |
| Aug 3, 1981 | F1 | Grant | 0.1 | 0 |
| Sep 11, 1981 | F1 | Alfalfa | 0.1 | 0 |
| Sep 1, 1981 | F1 | Crawford | 0.1 | 0 |
| Sep 2, 1981 | F1 | Chambers | 0.1 | 0 |
| Sep 8, 1981 | F1 | Oswego | 0.1 | 0 |
| Apr 3, 1981 | F0 | Washington, Louisa, Muscatine | 103.5 | 0 |
| Mar 3, 1981 | F0 | Lubbock, Crosby | 23.3 | 0 |
| Apr 22, 1981 | F0 | Jefferson | 19.9 | 0 |
| May 17, 1981 | F0 | Kay | 18.7 | 0 |
| Jun 21, 1981 | F0 | Brown, Watonwan | 12.0 | 0 |
| Mar 3, 1981 | F0 | Lubbock | 11.9 | 0 |
| Apr 10, 1981 | F0 | Marion | 8.3 | 0 |
| Apr 10, 1981 | F0 | Warren | 8.0 | 0 |
| Jul 5, 1981 | F0 | Fayette | 7.8 | 0 |
| Jun 19, 1981 | F0 | Cass | 7.1 | 0 |
| Apr 3, 1981 | F0 | Fillmore | 6.4 | 0 |
| Apr 22, 1981 | F0 | Madison | 5.6 | 0 |
| Apr 3, 1981 | F0 | Boone | 5.2 | 0 |
| May 23, 1981 | F0 | Platte | 3.8 | 0 |
| Sep 2, 1981 | F0 | Laramie | 3.3 | 0 |
| Apr 13, 1981 | F0 | Holt | 2.8 | 0 |
| Jul 16, 1981 | F0 | Koochiching | 2.3 | 0 |
| Oct 17, 1981 | F0 | Marshall | 2.0 | 0 |
| Apr 13, 1981 | F0 | Andrew | 2.0 | 0 |
| May 13, 1981 | F0 | Searcy | 2.0 | 0 |
| May 23, 1981 | F0 | Leavenworth | 2.0 | 0 |
| Jun 21, 1981 | F0 | Knox | 2.0 | 0 |
| Jun 21, 1981 | F0 | Redwood | 2.0 | 0 |
| Jul 10, 1981 | F0 | Cass | 2.0 | 0 |
| Mar 3, 1981 | F0 | Hutchinson | 1.0 | 0 |
| Apr 22, 1981 | F0 | Scott | 1.0 | 0 |
| May 26, 1981 | F0 | Bay | 1.0 | 0 |
| May 26, 1981 | F0 | Briscoe | 1.0 | 0 |
| Jun 19, 1981 | F0 | Cass | 1.0 | 0 |
| Jun 21, 1981 | F0 | Columbiana | 1.0 | 0 |
| Jun 21, 1981 | F0 | Norman | 1.0 | 0 |
| Jun 21, 1981 | F0 | Lawrence | 1.0 | 0 |
| Jun 21, 1981 | F0 | Jackson | 1.0 | 0 |
| Jun 21, 1981 | F0 | Jackson | 1.0 | 0 |
| Jun 21, 1981 | F0 | Cass | 1.0 | 0 |
| Jun 21, 1981 | F0 | Cass | 1.0 | 0 |
| Jun 21, 1981 | F0 | Osage | 1.0 | 0 |
| Jun 29, 1981 | F0 | Jackson | 1.0 | 0 |
| Sep 16, 1981 | F0 | Polk | 1.0 | 0 |
| Apr 29, 1981 | F0 | Olmsted | 0.8 | 0 |
| Aug 30, 1981 | F0 | Bexar | 0.8 | 0 |
| Mar 3, 1981 | F0 | Crosby | 0.7 | 0 |
| Jun 5, 1981 | F0 | Chambers | 0.7 | 0 |
| Apr 17, 1981 | F0 | Calhoun | 0.6 | 0 |
| May 4, 1981 | F0 | Fort Bend | 0.6 | 0 |
| Apr 20, 1981 | F0 | Tom Green | 0.5 | 0 |
| Apr 29, 1981 | F0 | Olmsted | 0.5 | 0 |
| May 18, 1981 | F0 | Butler | 0.5 | 0 |
| May 22, 1981 | F0 | Lincoln | 0.5 | 0 |
| May 23, 1981 | F0 | Montgomery | 0.5 | 0 |
| May 23, 1981 | F0 | Vernon | 0.5 | 0 |
| May 24, 1981 | F0 | Lubbock | 0.5 | 0 |
| May 26, 1981 | F0 | Motley | 0.5 | 0 |
| May 26, 1981 | F0 | Cottle | 0.5 | 0 |
| May 27, 1981 | F0 | Peoria | 0.5 | 0 |
| May 28, 1981 | F0 | Hockley | 0.5 | 0 |
| May 6, 1981 | F0 | Hansford | 0.5 | 0 |
| May 7, 1981 | F0 | Crosby | 0.5 | 0 |
| May 7, 1981 | F0 | Crosby | 0.5 | 0 |
| May 7, 1981 | F0 | Crosby | 0.5 | 0 |
| May 7, 1981 | F0 | Crosby | 0.5 | 0 |
| Jun 11, 1981 | F0 | Carson | 0.5 | 0 |
| Jun 13, 1981 | F0 | Franklin | 0.5 | 0 |
| Jun 13, 1981 | F0 | Guernsey | 0.5 | 0 |
| Jun 21, 1981 | F0 | Riley | 0.5 | 0 |
| Jun 23, 1981 | F0 | Dewey | 0.5 | 0 |
| Jun 23, 1981 | F0 | McCook | 0.5 | 0 |
| Jun 24, 1981 | F0 | Marshall | 0.5 | 0 |
| Jun 25, 1981 | F0 | Manatee | 0.5 | 0 |
| Jun 28, 1981 | F0 | Thomas | 0.5 | 0 |
| Jun 29, 1981 | F0 | Osage | 0.5 | 0 |
| Jun 29, 1981 | F0 | Cowley | 0.5 | 0 |
| Jun 30, 1981 | F0 | Harper | 0.5 | 0 |
| Jun 30, 1981 | F0 | Harper | 0.5 | 0 |
| Jun 1, 1981 | F0 | Hall | 0.5 | 0 |
| Jun 3, 1981 | F0 | Kiowa | 0.5 | 0 |
| Jun 3, 1981 | F0 | Scurry | 0.5 | 0 |
| Jun 6, 1981 | F0 | Madison | 0.5 | 0 |
| Jul 15, 1981 | F0 | Pinellas | 0.5 | 0 |
| Jul 24, 1981 | F0 | Weld | 0.5 | 0 |
| Jul 27, 1981 | F0 | Douglas | 0.5 | 0 |
| Jul 27, 1981 | F0 | El Paso | 0.5 | 0 |
| Jul 30, 1981 | F0 | Morton | 0.5 | 0 |
| Jul 1, 1981 | F0 | Mountrail | 0.5 | 0 |
| Jul 2, 1981 | F0 | Broward | 0.5 | 0 |
| Jul 3, 1981 | F0 | Clarendon | 0.5 | 0 |
| Jul 9, 1981 | F0 | Okaloosa | 0.5 | 0 |
| Aug 16, 1981 | F0 | Miami-Dade | 0.5 | 0 |
| Aug 16, 1981 | F0 | Arapahoe | 0.5 | 0 |
| Aug 16, 1981 | F0 | Monroe | 0.5 | 0 |
| Aug 30, 1981 | F0 | Atascosa | 0.5 | 0 |
| Aug 2, 1981 | F0 | El Paso | 0.5 | 0 |
| Sep 23, 1981 | F0 | Weld | 0.5 | 0 |
| May 27, 1981 | F0 | Knox | 0.4 | 0 |
| May 29, 1981 | F0 | Bee | 0.4 | 0 |
| Jun 2, 1981 | F0 | Hall | 0.4 | 0 |
| Jun 9, 1981 | F0 | Morton | 0.4 | 0 |
| Jul 15, 1981 | F0 | Nelson | 0.4 | 0 |
| Jul 24, 1981 | F0 | Grant | 0.4 | 0 |
| Jul 30, 1981 | F0 | Wells | 0.4 | 0 |
| Mar 22, 1981 | F0 | Alachua | 0.3 | 0 |
| Mar 4, 1981 | F0 | Ellis | 0.3 | 0 |
| Apr 17, 1981 | F0 | Lucas | 0.3 | 0 |
| Apr 28, 1981 | F0 | Emmons | 0.3 | 0 |
| May 15, 1981 | F0 | Llano | 0.3 | 0 |
| May 22, 1981 | F0 | Caddo | 0.3 | 0 |
| May 24, 1981 | F0 | Floyd | 0.3 | 0 |
| May 24, 1981 | F0 | Lubbock | 0.3 | 0 |
| May 24, 1981 | F0 | Bailey | 0.3 | 0 |
| May 26, 1981 | F0 | Briscoe | 0.3 | 0 |
| May 7, 1981 | F0 | Floyd | 0.3 | 0 |
| Jun 21, 1981 | F0 | Jackson | 0.3 | 0 |
| Jun 21, 1981 | F0 | McLean | 0.3 | 0 |
| Jun 27, 1981 | F0 | Grand Forks | 0.3 | 0 |
| Jun 28, 1981 | F0 | Griggs | 0.3 | 0 |
| Jun 1, 1981 | F0 | Collingsworth | 0.3 | 0 |
| Jun 1, 1981 | F0 | Cottle | 0.3 | 0 |
| Jun 2, 1981 | F0 | Moore | 0.3 | 0 |
| Jun 2, 1981 | F0 | Moore | 0.3 | 0 |
| Jun 9, 1981 | F0 | Grant | 0.3 | 0 |
| Jul 18, 1981 | F0 | Grant | 0.3 | 0 |
| Jul 24, 1981 | F0 | St. Croix | 0.3 | 0 |
| Jul 1, 1981 | F0 | Bottineau | 0.3 | 0 |
| Jul 4, 1981 | F0 | Upton | 0.3 | 0 |
| Aug 30, 1981 | F0 | Karnes | 0.3 | 0 |
| Apr 20, 1981 | F0 | Tom Green | 0.2 | 0 |
| May 16, 1981 | F0 | Milam | 0.2 | 0 |
| May 17, 1981 | F0 | Thomas | 0.2 | 0 |
| May 25, 1981 | F0 | Wabaunsee | 0.2 | 0 |
| May 8, 1981 | F0 | Sedgwick | 0.2 | 0 |
| May 8, 1981 | F0 | Parker | 0.2 | 0 |
| May 8, 1981 | F0 | Parker | 0.2 | 0 |
| May 9, 1981 | F0 | Tipton | 0.2 | 0 |
| Jun 13, 1981 | F0 | Boone | 0.2 | 0 |
| Jun 20, 1981 | F0 | Johnson | 0.2 | 0 |
| Jun 29, 1981 | F0 | Sedgwick | 0.2 | 0 |
| Jun 4, 1981 | F0 | Manatee | 0.2 | 0 |
| Jul 24, 1981 | F0 | Wayne | 0.2 | 0 |
| Jul 25, 1981 | F0 | Weld | 0.2 | 0 |
| Jul 31, 1981 | F0 | Grant | 0.2 | 0 |
| Jul 4, 1981 | F0 | Bailey | 0.2 | 0 |
| Jul 4, 1981 | F0 | Vermilion | 0.2 | 0 |
| Jul 4, 1981 | F0 | Hansford | 0.2 | 0 |
| Jul 5, 1981 | F0 | Navarro | 0.2 | 0 |
| Aug 29, 1981 | F0 | Hidalgo | 0.2 | 0 |
| Aug 30, 1981 | F0 | Goliad | 0.2 | 0 |
| Sep 26, 1981 | F0 | Miami-Dade | 0.2 | 0 |
| Oct 16, 1981 | F0 | Ellis | 0.1 | 0 |
| Oct 18, 1981 | F0 | Victoria | 0.1 | 0 |
| Oct 5, 1981 | F0 | Kingfisher | 0.1 | 0 |
| Oct 7, 1981 | F0 | Galveston | 0.1 | 0 |
| Nov 3, 1981 | F0 | Garfield | 0.1 | 0 |
| Nov 8, 1981 | F0 | Johnson | 0.1 | 0 |
| Jan 22, 1981 | F0 | Butte | 0.1 | 0 |
| Jan 23, 1981 | F0 | San Joaquin | 0.1 | 0 |
| Mar 19, 1981 | F0 | San Joaquin | 0.1 | 0 |
| Apr 11, 1981 | F0 | Kiowa | 0.1 | 0 |
| Apr 13, 1981 | F0 | Shawnee | 0.1 | 0 |
| Apr 13, 1981 | F0 | Putnam | 0.1 | 0 |
| Apr 13, 1981 | F0 | Montgomery | 0.1 | 0 |
| Apr 13, 1981 | F0 | McLean | 0.1 | 0 |
| Apr 20, 1981 | F0 | Concho | 0.1 | 0 |
| Apr 20, 1981 | F0 | Platte | 0.1 | 0 |
| Apr 22, 1981 | F0 | Haskell | 0.1 | 0 |
| Apr 30, 1981 | F0 | St. John the Baptist | 0.1 | 0 |
| Apr 3, 1981 | F0 | Seward | 0.1 | 0 |
| Apr 3, 1981 | F0 | Wayne | 0.1 | 0 |
| May 11, 1981 | F0 | Broward | 0.1 | 0 |
| May 17, 1981 | F0 | Osage | 0.1 | 0 |
| May 18, 1981 | F0 | Union | 0.1 | 0 |
| May 22, 1981 | F0 | Clay | 0.1 | 0 |
| May 23, 1981 | F0 | Page | 0.1 | 0 |
| May 23, 1981 | F0 | Montgomery | 0.1 | 0 |
| May 23, 1981 | F0 | Adair | 0.1 | 0 |
| May 23, 1981 | F0 | Cass | 0.1 | 0 |
| May 23, 1981 | F0 | Adair | 0.1 | 0 |
| May 23, 1981 | F0 | Adair | 0.1 | 0 |
| May 23, 1981 | F0 | Nowata | 0.1 | 0 |
| May 23, 1981 | F0 | Madison | 0.1 | 0 |
| May 24, 1981 | F0 | Baylor | 0.1 | 0 |
| May 24, 1981 | F0 | Baylor | 0.1 | 0 |
| May 24, 1981 | F0 | Baylor | 0.1 | 0 |
| May 26, 1981 | F0 | Vanderburgh | 0.1 | 0 |
| May 28, 1981 | F0 | Broward | 0.1 | 0 |
| May 31, 1981 | F0 | Conway | 0.1 | 0 |
| May 6, 1981 | F0 | Quay | 0.1 | 0 |
| May 7, 1981 | F0 | Broward | 0.1 | 0 |
| Jun 10, 1981 | F0 | Orange | 0.1 | 0 |
| Jun 10, 1981 | F0 | Gregg | 0.1 | 0 |
| Jun 11, 1981 | F0 | Cimarron | 0.1 | 0 |
| Jun 12, 1981 | F0 | Miner | 0.1 | 0 |
| Jun 13, 1981 | F0 | Montgomery | 0.1 | 0 |
| Jun 14, 1981 | F0 | Adams | 0.1 | 0 |
| Jun 14, 1981 | F0 | Pottawatomie | 0.1 | 0 |
| Jun 15, 1981 | F0 | Green | 0.1 | 0 |
| Jun 19, 1981 | F0 | Pinellas | 0.1 | 0 |
| Jun 20, 1981 | F0 | Orange | 0.1 | 0 |
| Jun 20, 1981 | F0 | Lincoln | 0.1 | 0 |
| Jun 20, 1981 | F0 | McLean | 0.1 | 0 |
| Jun 20, 1981 | F0 | McLean | 0.1 | 0 |
| Jun 21, 1981 | F0 | Broward | 0.1 | 0 |
| Jun 21, 1981 | F0 | Brown | 0.1 | 0 |
| Jun 21, 1981 | F0 | Orange | 0.1 | 0 |
| Jun 21, 1981 | F0 | Orange | 0.1 | 0 |
| Jun 21, 1981 | F0 | McLean | 0.1 | 0 |
| Jun 21, 1981 | F0 | Adams | 0.1 | 0 |
| Jun 23, 1981 | F0 | Cameron | 0.1 | 0 |
| Jun 23, 1981 | F0 | Yellow Medicine | 0.1 | 0 |
| Jun 23, 1981 | F0 | Tensas | 0.1 | 0 |
| Jun 23, 1981 | F0 | Faribault | 0.1 | 0 |
| Jun 23, 1981 | F0 | Faribault | 0.1 | 0 |
| Jun 23, 1981 | F0 | Clay | 0.1 | 0 |
| Jun 24, 1981 | F0 | Okeechobee | 0.1 | 0 |
| Jun 24, 1981 | F0 | Okeechobee | 0.1 | 0 |
| Jun 25, 1981 | F0 | Hillsborough | 0.1 | 0 |
| Jun 28, 1981 | F0 | Kleberg | 0.1 | 0 |
| Jun 30, 1981 | F0 | Quay | 0.1 | 0 |
| Jun 1, 1981 | F0 | White | 0.1 | 0 |
| Jun 1, 1981 | F0 | Caddo | 0.1 | 0 |
| Jun 2, 1981 | F0 | DeSoto | 0.1 | 0 |
| Jun 2, 1981 | F0 | Texas | 0.1 | 0 |
| Jun 3, 1981 | F0 | Brazoria | 0.1 | 0 |
| Jun 3, 1981 | F0 | Smith | 0.1 | 0 |
| Jun 3, 1981 | F0 | Jones | 0.1 | 0 |
| Jun 4, 1981 | F0 | Dunklin | 0.1 | 0 |
| Jun 5, 1981 | F0 | Rapides | 0.1 | 0 |
| Jun 6, 1981 | F0 | Humphreys | 0.1 | 0 |
| Jun 6, 1981 | F0 | Humphreys | 0.1 | 0 |
| Jun 6, 1981 | F0 | Sabine | 0.1 | 0 |
| Jun 8, 1981 | F0 | McDonough | 0.1 | 0 |
| Jun 8, 1981 | F0 | Schuyler | 0.1 | 0 |
| Jun 8, 1981 | F0 | Carroll | 0.1 | 0 |
| Jun 8, 1981 | F0 | Sangamon | 0.1 | 0 |
| Jul 10, 1981 | F0 | Becker | 0.1 | 0 |
| Jul 10, 1981 | F0 | Mahnomen | 0.1 | 0 |
| Jul 10, 1981 | F0 | Becker | 0.1 | 0 |
| Jul 20, 1981 | F0 | Dodge | 0.1 | 0 |
| Jul 20, 1981 | F0 | Hubbard | 0.1 | 0 |
| Jul 21, 1981 | F0 | Buffalo | 0.1 | 0 |
| Jul 22, 1981 | F0 | Oglala Lakota | 0.1 | 0 |
| Jul 22, 1981 | F0 | Deuel | 0.1 | 0 |
| Jul 22, 1981 | F0 | Hamlin | 0.1 | 0 |
| Jul 23, 1981 | F0 | Pennington | 0.1 | 0 |
| Jul 23, 1981 | F0 | Pennington | 0.1 | 0 |
| Jul 24, 1981 | F0 | Martin | 0.1 | 0 |
| Jul 25, 1981 | F0 | LaPorte | 0.1 | 0 |
| Jul 25, 1981 | F0 | Fulton | 0.1 | 0 |
| Jul 25, 1981 | F0 | Red Willow | 0.1 | 0 |
| Jul 26, 1981 | F0 | Preston | 0.1 | 0 |
| Jul 29, 1981 | F0 | Manatee | 0.1 | 0 |
| Jul 9, 1981 | F0 | Miami-Dade | 0.1 | 0 |
| Jul 9, 1981 | F0 | Santa Rosa | 0.1 | 0 |
| Aug 11, 1981 | F0 | Refugio | 0.1 | 0 |
| Aug 12, 1981 | F0 | San Patricio | 0.1 | 0 |
| Aug 15, 1981 | F0 | Garfield | 0.1 | 0 |
| Aug 16, 1981 | F0 | Laramie | 0.1 | 0 |
| Aug 18, 1981 | F0 | Baldwin | 0.1 | 0 |
| Aug 20, 1981 | F0 | Indian River | 0.1 | 0 |
| Aug 21, 1981 | F0 | Cheyenne | 0.1 | 0 |
| Aug 27, 1981 | F0 | Orange | 0.1 | 0 |
| Aug 27, 1981 | F0 | Collier | 0.1 | 0 |
| Aug 28, 1981 | F0 | Ector | 0.1 | 0 |
| Aug 28, 1981 | F0 | Chickasaw | 0.1 | 0 |
| Aug 29, 1981 | F0 | Sheboygan | 0.1 | 0 |
| Aug 29, 1981 | F0 | Nueces | 0.1 | 0 |
| Aug 31, 1981 | F0 | Austin | 0.1 | 0 |
| Aug 2, 1981 | F0 | Toole | 0.1 | 0 |
| Aug 2, 1981 | F0 | Toole | 0.1 | 0 |
| Aug 2, 1981 | F0 | Otero | 0.1 | 0 |
| Aug 3, 1981 | F0 | Polk | 0.1 | 0 |
| Aug 3, 1981 | F0 | Polk | 0.1 | 0 |
| Aug 4, 1981 | F0 | Harris | 0.1 | 0 |
| Aug 5, 1981 | F0 | Otero | 0.1 | 0 |
| Aug 6, 1981 | F0 | Dallam | 0.1 | 0 |
| Sep 13, 1981 | F0 | King | 0.1 | 0 |
| Sep 13, 1981 | F0 | Pushmataha | 0.1 | 0 |
| Sep 17, 1981 | F0 | Palm Beach | 0.1 | 0 |
| Sep 24, 1981 | F0 | Pierce | 0.1 | 0 |
| Sep 24, 1981 | F0 | Castro | 0.1 | 0 |
| Sep 25, 1981 | F0 | Stanley | 0.1 | 0 |
| Sep 3, 1981 | F0 | Jefferson | 0.1 | 0 |
| Sep 4, 1981 | F0 | Martin | 0.1 | 0 |
| Sep 4, 1981 | F0 | Gaines | 0.1 | 0 |
Tropical cyclones
Storms whose tracks came within 100 miles of a U.S. county.
Earthquakes
Magnitude 5 or more in the lower 48 and Hawaii, 6.5 or more in Alaska, strongest first.
| Jan 29, 1981 | 7.0 | near Attu Station, Alaska Aleutians West AK |
| Sep 30, 1981 | 5.9 | near Mammoth Lakes, California Mono CA |
| Apr 26, 1981 | 5.8 | Westmorland, California Imperial CA |
| Sep 4, 1981 | 5.5 | near Santa Barbara Is., CA Santa Barbara CA |
| Feb 13, 1981 | 5.2 | near Morton, Washington Skamania WA |
| May 28, 1981 | 5.0 | near Packwood, Washington Yakima WA |
Drought
On average 14% of lower-48 counties were in severe drought in 1981. The worst month was April 1981, with 28%.
Storm Prediction Center, National Hurricane Center HURDAT2, Monitoring Trends in Burn Severity, NOAA Storm Events Database, USGS Comprehensive Earthquake Catalog, NOAA nClimDiv Palmer Drought Severity Index. Damage is as reported at the time, not adjusted for inflation.
Drought · 1981
How the 1981 drought spread
Every county’s Palmer reading, month by month, from July 1980 to December 1981.