May 31
47 entries from the federal record fall on May 31, across every year it covers.
Tornadoes
Tornadoes rated F3/EF3 or stronger, or that killed, on this date.
- 1985F5, 47 mile path, 18 killed Portage, OH; Trumbull, OH; Mercer, PA
- 1985F4, 56.2 mile path, 16 killed Mercer, PA; Crawford, PA; Venango, PA
- 1985F4, 14 mile path, 12 killed Ashtabula, OH; Erie, PA
- 1985F4, 29 mile path, 7 killed Venango, PA; Forest, PA
- 1985F4, 29 mile path, 4 killed Warren, PA; McKean, PA; Elk, PA
- 1985F4, 28 mile path Erie, PA; Warren, PA; Chautauqua, NY
- 1985F4, 69 mile path Clearfield, PA; Clinton, PA; Centre, PA
- 1985F3, 39 mile path, 9 killed Beaver, PA; Butler, PA
- 2013EF3, 16.2 mile path, 8 killed Canadian, OK
- 1985F3, 19 mile path, 6 killed Lycoming, PA; Union, PA; Northumberland, PA
- 1978F3, 37 mile path, 3 killed Pottawatomie, KS; Jackson, KS
- 1985F3, 23 mile path, 2 killed Crawford, PA
- 1985F3, 29 mile path, 1 killed Licking, OH; Coshocton, OH
- 1998F3, 13 mile path, 1 killed Somerset, PA
- 1958F3, 0.3 mile path Labette, KS
- 1962F3, 2 mile path Callahan, TX
- 1971F3, 46.5 mile path O'Brien, IA; Osceola, IA; Dickinson, IA
- 1971F3, 8.6 mile path Osceola, IA
- 1971F3, 8 mile path Dickinson, IA
- 1971F3, 9.4 mile path Tama, IA
- 1985F3, 15 mile path Trumbull, OH; Ashtabula, OH
- 1985F3, 8 mile path Crawford, PA
- 1985F3, 13 mile path Chautauqua, NY
- 1985F3, 17 mile path Warren, PA
- 1990F3, 14 mile path Ochiltree, TX
- 1996F3, 32 mile path Brown, SD; Marshall, SD
- 1998F3, 30.5 mile path Saratoga, NY; Rensselaer, NY; Bennington, VT
- 1998F3, 62 mile path Tioga, NY; Broome, NY; Delaware, NY
- 1998F3, 5 mile path Otsego, NY
- 1998F3, 20 mile path Pike, PA
- 1998F3, 8.3 mile path Berks, PA
- 1999F3, 7 mile path Lincoln, CO
- 2013EF3, 31.7 mile path St. Charles, MO; St. Louis, MO
- 2013EF3, 10.6 mile path St. Louis, MO; Madison, IL
- 1985F2, 4 mile path, 1 killed Crawford, PA
- 2001F2, 6.3 mile path, 1 killed Cannon, TN
- 1967F1, 0.1 mile path, 1 killed Tipton, TN
Deadly and costly storms
Earthquakes
Magnitude 5 or more in the lower 48 and Hawaii, 6.5 or more in Alaska, on this date (local time).
- 1938M5.2, near Trabuco Canyon, CA Orange County, CA
- 1975M5.3, near Ludlow, CA San Bernardino County, CA
Wildfires
Fires of 50,000 acres or more that began on this date.
- 2013Lime Hills Fire, 193,970 acres AK
- 2022East Fork Fire, 169,400 acres AK
- 2003Dry Lake Complex (Dry Lakes), 114,154 acres NM
- 2002Sanford Fire, 86,491 acres UT
- 2020Ingakslugwat Hills Fire, 69,424 acres AK
- 2006Nageethluk River Fire, 56,307 acres AK