Alert archive / California / Hard Freeze Warnings

Hard Freeze Warnings in California, 2021

13 hard freeze warnings in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of hard freeze warnings reaches back to 2005.

Hard Freeze Warnings by county

Each county as a circle sized by its count in 2021. Tap one for its archive.

Hard Freeze Warnings
13
Busiest month
December4 hard freeze warnings
Busiest day
December 10, 20212 hard freeze warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jan 25, 2:15 AM PSTHard Freeze WarningSTO31 hr
Jan 25, 4:11 PM PSTHard Freeze WarningHNX16 hr
Mar 10, 2:31 PM PSTHard Freeze WarningEKALake, Mendocino18 hr
Mar 15, 1:38 PM PDTHard Freeze WarningEKALake, Mendocino19 hr
Mar 20, 2:30 PM PDTHard Freeze WarningEKALake, Mendocino18 hr
Oct 11, 2:11 PM PDTHard Freeze WarningEKAHumboldt, Trinity19 hr
Nov 24, 2:02 PM PSTHard Freeze WarningLOX19 hr
Nov 25, 2:05 PM PSTHard Freeze WarningLOX19 hr
Nov 26, 2:01 PM PSTHard Freeze WarningLOX19 hr
Dec 10, 2:00 AM PSTHard Freeze WarningHNXKern31 hr
Dec 10, 3:08 AM PSTHard Freeze WarningLOX29 hr
Dec 11, 8:48 AM PSTHard Freeze WarningHNXKern24 hr
Dec 11, 12:22 PM PSTHard Freeze WarningLOX20 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

  1. December 10, 20212hard freeze warnings
  2. December 11, 20212hard freeze warnings
  3. January 25, 20211hard freeze warnings
  4. January 26, 20211hard freeze warnings
  5. March 10, 20211hard freeze warnings
  6. March 15, 20211hard freeze warnings
  7. March 20, 20211hard freeze warnings
  8. October 11, 20211hard freeze warnings
  9. November 24, 20211hard freeze warnings
  10. November 25, 20211hard freeze warnings
  11. November 26, 20211hard freeze warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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. Warning verification from the Mesonet's Cow. Rebuilt daily.