July 21
40 entries from the federal record fall on July 21, across every year it covers.
Tropical cyclones
Storms at their strongest near the U.S. on this date.
- 1909Unnamed storm, category 3 near Galveston County, TX
- 1916Unnamed storm, tropical storm near Nassau County, NY
- 2008Cristobal, tropical storm near Currituck County, NC
Tornadoes
Tornadoes rated F3/EF3 or stronger, or that killed, on this date.
- 1987F4, 24.3 mile path Teton, WY
- 1961F3, 23.9 mile path Warren, IN
- 1962F3, 25.2 mile path Polk, NE
- 1983F3, 0.2 mile path Ocean, NJ
- 1987F3, 1 mile path Griggs, ND
- 1993F3, 12 mile path Washington, CO
- 2003F3, 2.5 mile path Potter, PA
- 1983F2, 1 mile path, 2 killed Kent, DE
- 1983F2, 13.6 mile path, 1 killed Allegan, MI
Deadly and costly storms
- 2011Excessive Heat, 25 deaths Berks; Bucks; Carbon; Chester
- 2011Excessive Heat, 20 deaths Bronx; Kings; Nassau; New York
- 1999Heat, 13 deaths Cook; DuPage; Kane; Kendall
- 2019Heat, 13 deaths Maricopa
- 2001Heat, 10 deaths Cook
- 2026Excessive Heat, 10 deaths Pima; Santa Cruz
- 2003Flash Flood, 4 deaths, $199 million Ashtabula; Geauga; Mahoning; Medina
- 2006Heat, 4 deaths Orange; Riverside; San Bernardino; San Diego
- 2020Heat, 4 deaths Pima; Pinal; Santa Cruz
- 2001Heat, 3 deaths Audrain; Boone; Callaway; Cole
- 2006Heat, 3 deaths Marin; Napa; Sonoma
Earthquakes
Magnitude 5 or more in the lower 48 and Hawaii, 6.5 or more in Alaska, on this date (local time).
- 1952M7.5, Kern County, California Kern County, CA
- 1952M5.8, near Grapevine, CA Kern County, CA
- 1952M5.4, near Grapevine, CA Kern County, CA
- 1952M5.2, near Grapevine, CA Kern County, CA
- 1952M5.2, near Grapevine, CA Kern County, CA
- 1952M5.2, near Tehachapi, CA Kern County, CA
- 1952M5.2, near Arvin, CA Kern County, CA
- 1959M5.6, near Fredonia, Arizona Coconino County, AZ
- 1983M5.4, near Coalinga, California Fresno County, CA
- 1986M6.4, Chalfant Valley, California Mono County, CA
- 1986M5.7, near Mesa, California Mono County, CA
- 1986M5.6, near Dyer, Nevada Mono County, CA
- 2020M7.8, Perryville, Alaska Aleutians East Borough, AK
Wildfires
Fires of 50,000 acres or more that began on this date.
- 2007Murphy Complex, 567,212 acres ID, NV
- 2002Mcnally Fire, 146,478 acres CA
- 2002Long Creek Fire, 73,238 acres AK
- 2023Newell Road Fire, 61,843 acres WA