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July 31

29 entries from the federal record fall on July 31, across every year it covers.

Tropical cyclones

Storms at their strongest near the U.S. on this date.

  1. 1908Unnamed storm, category 1 near Carteret County, NC
  2. 1908Unnamed storm, tropical storm near Terrebonne Parish, LA
  3. 1936Unnamed storm, category 2 near Okaloosa County, FL
  4. 1937Unnamed storm, tropical storm near Virginia Beach city, VA
  5. 1978Amelia, tropical storm near Willacy County, TX
  6. 1995Dean, tropical storm near Brazoria County, TX
  7. 2017Emily, tropical storm near Manatee County, FL

Tornadoes

Tornadoes rated F3/EF3 or stronger, or that killed, on this date.

  1. 1966F3, 26.4 mile path, 2 killed McIntosh, ND; McPherson, SD
  2. 1955F3, 0.5 mile path Costilla, CO
  3. 1958F3, 0.1 mile path Shelby, IN
  4. 1966F2, 2.3 mile path, 1 killed Brown, SD
  5. 1978F2, 0.2 mile path, 1 killed Dare, NC

Earthquakes

Magnitude 5 or more in the lower 48 and Hawaii, 6.5 or more in Alaska, on this date (local time).

  1. 1902M5.8, Near Los Alamos, California Santa Barbara County, CA
  2. 1952M5.6, near Tehachapi, CA Kern County, CA
  3. 1986M5.8, near Dixon Lane-Meadow Creek, California Mono County, CA
  4. 1987M5.6, near Ferndale, California Humboldt County, CA

Wildfires

Fires of 50,000 acres or more that began on this date.

  1. 2000Diamond Complex (Diamond Peak), 271,336 acres ID
  2. 2021Monument Fire, 225,973 acres CA
  3. 2021Haypress Fire, 204,379 acres CA
  4. 2016Range 12 Fire, 167,703 acres WA
  5. 2020Pine Gulch Fire, 138,178 acres CO
  6. 2000Valley Complex (Bear), 118,109 acres MT
  7. 2007Chippy Creek Fire, 95,636 acres MT
  8. 2000Flossie Complex, 90,585 acres ID
  9. 2012Sarpy Hills Complex, 83,940 acres MT
  10. 2015River Complex, 78,468 acres CA
  11. 2000Mussigbrod Complex (Mussigbrod), 64,828 acres MT
  12. 2000Sula Complex (Maynard), 62,997 acres ID, MT
  13. 2005George Fire, 62,942 acres AK