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Hazards

Analysis

Rankings

Reference

December 20

14 entries from the federal record fall on December 20, across every year it covers.

Tornadoes

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

  1. 1971F3, 1 mile path Monroe, AL

Deadly and costly storms

  1. 1996Winter Storm, 8 deaths, $300,000 Alpine; El Dorado; Nevada; Placer
  2. 2013Winter Weather, 5 deaths, $1.0 million Adams; Douglas; Grant; Lincoln
  3. 1998Ice Storm, 4 deaths Douglas; Lyon; Osage
  4. 2015Winter Weather, 4 deaths, $60,000 Bonneville; Fremont; Jefferson; Madison
  5. 1996Winter Storm, 3 deaths Flathead; Granite; Lake; Lincoln
  6. 2007Lightning, 3 deaths, $150,000 Grant

Earthquakes

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

  1. 1932M6.8, Cedar Mountain, Nevada Mineral County, NV
  2. 1940M5.3, near Tamworth, New Hampshire Carroll County, NH
  3. 1940M6.0, near Shelter Cove, California Humboldt County, CA
  4. 1954M5.0, near Gabbs, Nevada Churchill County, NV
  5. 2021M5.7, near Petrolia, CA Humboldt County, CA
  6. 2021M6.2, near Petrolia, CA Humboldt County, CA
  7. 2022M6.4, near Ferndale, CA Humboldt County, CA