Alert archive / California / Frost Advisories

Frost Advisories in California, 2020

78 frost advisories in 2020. 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 frost advisories reaches back to 2005.

Frost Advisories by county

Each county as a circle sized by its count in 2020. Tap one for its archive.

Frost Advisories
78
Busiest month
November24 frost advisories
Busiest day
November 9, 20205 frost advisories

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
Feb 2, 1:13 PM PSTFrost AdvisoryLOX20 hr
Feb 4, 2:02 PM PSTFrost AdvisoryLOXLos Angeles19 hr
Feb 5, 3:41 AM PSTFrost AdvisorySGXOrange, San Diego4 hr
Feb 5, 2:16 PM PSTFrost AdvisoryLOX19 hr
Feb 29, 2:13 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino19 hr
Mar 1, 2:42 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino18 hr
Mar 3, 4:45 AM PSTFrost AdvisoryEKAMendocino4 hr
Mar 3, 1:33 PM PSTFrost AdvisoryEKALake, Mendocino19 hr
Mar 4, 2:05 PM PSTFrost AdvisoryEKALake, Mendocino19 hr
Mar 7, 2:10 PM PSTFrost AdvisoryEKAMendocino19 hr
Mar 9, 5:28 AM PDTFrost AdvisoryEKALake, Mendocino28 hr
Mar 10, 3:36 PM PDTFrost AdvisoryEKALake, Mendocino17 hr
Mar 15, 4:31 AM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino28 hr
Mar 18, 4:24 AM PDTFrost AdvisoryEKALake, Mendocino23 hr
Mar 20, 2:39 PM PDTFrost AdvisoryEKALake, Mendocino18 hr
Mar 21, 2:10 PM PDTFrost AdvisoryEKALake, Mendocino19 hr
Mar 22, 2:21 PM PDTFrost AdvisoryEKALake, Mendocino19 hr
Mar 24, 8:54 AM PDTFrost AdvisoryEKAMendocino24 hr
Mar 25, 2:43 AM PDTFrost AdvisoryMTRMarin, Napa, Sonoma30 hr
Mar 25, 1:37 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino19 hr
Mar 26, 1:02 PM PDTFrost AdvisoryMTRMarin, Napa, Sonoma20 hr
Mar 26, 3:52 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino17 hr
Apr 1, 3:23 AM PDTFrost AdvisoryEKADel Norte, Lake, Mendocino6 hr
Apr 1, 9:25 AM PDTFrost AdvisoryEKADel Norte, Humboldt, Lake, Mendocino24 hr
Apr 2, 2:08 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Lake, Mendocino19 hr
Apr 5, 10:21 AM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino22 hr
Apr 6, 2:13 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Lake, Mendocino19 hr
Apr 13, 3:10 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino17 hr
May 2, 1:20 PM PDTFrost AdvisoryEKALake, Mendocino, Trinity20 hr
May 3, 1:42 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Lake, Mendocino, Trinity19 hr
May 3, 1:51 PM PDTFrost AdvisoryMFRSiskiyou19 hr
May 6, 5:59 PM PDTFrost AdvisoryMFRSiskiyou15 hr
Jun 7, 4:03 AM PDTFrost AdvisoryEKAHumboldt, Lake, Trinity28 hr
Jun 7, 3:57 PM PDTFrost AdvisoryMFRSiskiyou16 hr
Jun 16, 2:19 AM PDTFrost AdvisoryMFRModoc, Siskiyou30 hr
Jul 1, 9:08 PM PDTFrost AdvisoryMFRModoc, Siskiyou11 hr
Sep 8, 3:23 AM PDTFrost AdvisoryMFRModoc29 hr
Oct 8, 9:30 PM PDTFrost AdvisoryMFRSiskiyou12 hr
Oct 11, 1:19 PM PDTFrost AdvisoryEKATrinity19 hr
Oct 14, 2:53 PM PDTFrost AdvisoryMFRSiskiyou18 hr
Oct 15, 2:26 PM PDTFrost AdvisoryMFRSiskiyou19 hr
Oct 22, 2:07 PM PDTFrost AdvisoryEKAMendocino19 hr
Oct 23, 12:08 PM PDTFrost AdvisoryEKAMendocino, Trinity20 hr
Oct 24, 11:45 AM PDTFrost AdvisoryEKALake, Mendocino20 hr
Oct 25, 4:44 AM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino28 hr
Oct 25, 2:11 PM PDTFrost AdvisorySGXSan Bernardino19 hr
Oct 26, 3:37 AM PDTFrost AdvisorySGXSan Bernardino28 hr
Oct 26, 2:45 PM PDTFrost AdvisoryEKAHumboldt, Mendocino17 hr
Oct 27, 2:55 PM PDTFrost AdvisoryEKAHumboldt, Mendocino17 hr
Oct 28, 12:47 PM PDTFrost AdvisoryEKAHumboldt, Mendocino19 hr
Oct 29, 1:22 PM PDTFrost AdvisoryEKAHumboldt19 hr
Nov 7, 1:54 PM PSTFrost AdvisoryLOX18 hr
Nov 8, 1:57 AM PSTFrost AdvisorySTO9 hr
Nov 8, 3:05 AM PSTFrost AdvisoryEKADel Norte, Mendocino30 hr
Nov 8, 4:49 AM PSTFrost AdvisoryMTRMarin, Monterey, Napa, San Benito, Sonoma28 hr
Nov 8, 8:21 AM PSTFrost AdvisoryLOXLos Angeles24 hr
Nov 9, 3:23 AM PSTFrost AdvisorySGXRiverside, San Bernardino5 hr
Nov 9, 3:23 AM PSTFrost AdvisorySGXRiverside, San Bernardino29 hr
Nov 9, 8:48 AM PSTFrost AdvisoryMTRMonterey, San Benito24 hr
Nov 9, 12:13 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino21 hr
Nov 9, 12:57 PM PSTFrost AdvisoryLOXLos Angeles20 hr
Nov 10, 3:16 AM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino30 hr
Nov 10, 12:43 PM PSTFrost AdvisoryMTRMarin, Monterey, Napa, Sonoma20 hr
Nov 19, 2:39 PM PSTFrost AdvisoryEKADel Norte18 hr
Nov 20, 9:40 AM PSTFrost AdvisoryEKADel Norte23 hr
Nov 21, 2:22 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino19 hr
Nov 25, 2:06 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino19 hr
Nov 26, 2:05 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino19 hr
Nov 27, 2:05 PM PSTFrost AdvisoryLOX19 hr
Nov 27, 2:51 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino18 hr
Nov 28, 2:07 PM PSTFrost AdvisoryLOX19 hr
Nov 28, 2:43 PM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino18 hr
Nov 29, 2:52 PM PSTFrost AdvisoryEKAMendocino18 hr
Nov 29, 8:53 PM PSTFrost AdvisoryLOX8 hr
Nov 30, 3:05 AM PSTFrost AdvisoryEKADel Norte, Humboldt, Mendocino24 hr
Dec 3, 8:53 PM PSTFrost AdvisoryLOX12 hr
Dec 16, 2:16 AM PSTFrost AdvisoryLOX7 hr
Dec 29, 1:57 PM PSTFrost AdvisoryLOX18 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.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

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.