Alert archive

Hard Freeze Warnings in the United States

1,244 hard freeze warnings since 1986. Each alert counts once, however many counties it covered. The archive of hard freeze warnings reaches back to 2005.

Hard Freeze Warnings by state

Each state shaded by its count. Tap a state for its own archive.

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Hard Freeze Warnings
1,244
Busiest year
2010167 hard freeze warnings
Average year
69over 18 years on file
Busiest day
January 15, 202413 hard freeze warnings

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By state

Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.

The busiest days

Days with the most alerts issued, by UTC date.

  1. January 15, 202413hard freeze warnings
  2. January 19, 202412hard freeze warnings
  3. January 9, 201011hard freeze warnings
  4. January 7, 201711hard freeze warnings
  5. December 21, 202211hard freeze warnings
  6. February 4, 200910hard freeze warnings
  7. December 13, 201010hard freeze warnings
  8. December 27, 201010hard freeze warnings
  9. January 8, 201010hard freeze warnings
  10. January 10, 201010hard freeze warnings
  11. January 12, 201110hard freeze warnings
  12. January 15, 20099hard freeze warnings
  13. January 1, 20088hard freeze warnings
  14. December 12, 20108hard freeze warnings
  15. January 4, 20108hard freeze warnings

Nearby

Alerts in force nowThe tornado archiveThe radar archive

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.