Alert archive / California / Freeze Warnings
Freeze Warnings in California, 2023
84 freeze warnings in 2023. 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Freeze Warnings
- 84
- Busiest month
- November19 freeze warnings
- Busiest day
- November 24, 20236 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 7:53 PM PST | Freeze Warning | LOX | Los Angeles, Ventura | 13 hr |
| Jan 18, 6:56 PM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 34 hr |
| Jan 19, 1:00 AM PST | Freeze Warning | HNX | Fresno, Kings, Madera, Mariposa, Merced, Tulare | 31 hr |
| Jan 19, 2:16 PM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 43 hr |
| Jan 20, 7:45 AM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 4 days |
| Jan 20, 1:12 PM PST | Freeze Warning | SGX | San Bernardino | 81 min |
| Jan 28, 12:47 PM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 39 hr |
| Jan 29, 11:21 PM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 58 hr |
| Jan 30, 4:13 AM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 29 hr |
| Feb 13, 11:59 AM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 69 hr |
| Feb 14, 2:25 AM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 31 hr |
| Feb 14, 2:41 AM PST | Freeze Warning | LOX | Los Angeles, Santa Barbara, Ventura | 12 hr |
| Feb 14, 1:17 PM PST | Freeze Warning | SGX | Riverside, San Bernardino | 19 hr |
| Feb 14, 11:56 PM PST | Freeze Warning | PSR | Imperial, Riverside | 32 hr |
| Feb 15, 3:24 AM PST | Freeze Warning | SGX | Riverside, San Bernardino | 29 hr |
| Feb 15, 9:02 AM PST | Freeze Warning | MTR | Marin, Monterey, Napa, San Benito, Santa Clara, Sonoma | 24 hr |
| Feb 22, 2:46 AM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 30 hr |
| Feb 23, 3:35 AM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 24 hr |
| Feb 24, 3:08 AM PST | Freeze Warning | MTR | Marin, Monterey, Napa, San Benito, San Mateo, Santa Clara and 2 more | 27 hr |
| Feb 28, 9:53 AM PST | Freeze Warning | STO | 22 hr | |
| Feb 28, 9:53 AM PST | Freeze Warning | STO | 46 hr | |
| Feb 28, 11:08 AM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 46 hr |
| Feb 28, 1:09 PM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 19 hr |
| Mar 1, 11:54 AM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 45 hr |
| Mar 1, 12:07 PM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 21 hr |
| Mar 1, 1:29 PM PST | Freeze Warning | SGX | Riverside, San Bernardino, San Diego | 19 hr |
| Mar 16, 9:37 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 11 hr |
| Mar 23, 3:54 AM PDT | Freeze Warning | EKA | Lake, Mendocino | 29 hr |
| Mar 24, 2:53 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 18 hr |
| Mar 25, 2:07 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Mar 26, 2:07 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Mar 29, 2:05 PM PDT | Freeze Warning | EKA | Mendocino | 19 hr |
| Mar 30, 10:56 AM PDT | Freeze Warning | EKA | Lake, Mendocino | 22 hr |
| Apr 2, 2:08 PM PDT | Freeze Warning | EKA | Mendocino | 19 hr |
| Apr 3, 1:11 PM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 19 hr |
| Apr 3, 2:31 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 18 hr |
| Apr 4, 2:08 PM PDT | Freeze Warning | EKA | Humboldt, Mendocino | 19 hr |
| Apr 4, 7:38 PM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 12 hr |
| Apr 11, 2:22 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 19 hr |
| Apr 12, 2:03 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Lake, Mendocino | 19 hr |
| Apr 13, 2:00 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Lake, Mendocino | 19 hr |
| Apr 19, 1:02 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Lake, Mendocino | 20 hr |
| Jun 18, 2:48 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 41 hr |
| Jun 20, 12:43 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 19 hr |
| Sep 20, 1:19 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 20 hr |
| Sep 21, 2:41 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 17 hr |
| Oct 11, 1:35 PM PDT | Freeze Warning | REV | Lassen, Modoc, Plumas, Sierra | 18 hr |
| Oct 25, 2:17 PM PDT | Freeze Warning | EKA | Humboldt | 20 hr |
| Oct 26, 12:33 AM PDT | Freeze Warning | VEF | 31 hr | |
| Oct 26, 3:26 AM PDT | Freeze Warning | MFR | Siskiyou | 30 hr |
| Oct 26, 2:04 PM PDT | Freeze Warning | EKA | Humboldt, Lake | 20 hr |
| Oct 27, 1:44 PM PDT | Freeze Warning | MFR | Siskiyou | 19 hr |
| Oct 27, 2:13 PM PDT | Freeze Warning | EKA | Humboldt, Lake, Mendocino | 20 hr |
| Oct 27, 8:47 PM PDT | Freeze Warning | MFR | Siskiyou | 36 hr |
| Oct 28, 11:18 AM PDT | Freeze Warning | MTR | Monterey | 21 hr |
| Oct 28, 1:29 PM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo | 19 hr |
| Oct 28, 1:29 PM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 43 hr |
| Oct 28, 6:05 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 15 hr |
| Oct 29, 8:59 PM PDT | Freeze Warning | EKA | Mendocino | 12 hr |
| Oct 30, 5:26 AM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 27 hr |
| Oct 31, 3:04 PM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo | 17 hr |
| Nov 1, 1:36 PM PDT | Freeze Warning | LOX | Los Angeles, San Luis Obispo | 18 hr |
| Nov 23, 2:09 PM PST | Freeze Warning | EKA | Del Norte, Humboldt | 19 hr |
| Nov 24, 12:35 AM PST | Freeze Warning | MTR | Monterey, San Benito | 33 hr |
| Nov 24, 3:24 AM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 5 days |
| Nov 24, 8:38 AM PST | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 24 hr |
| Nov 24, 1:42 PM PST | Freeze Warning | STO | 19 hr | |
| Nov 24, 1:42 PM PST | Freeze Warning | STO | 43 hr | |
| Nov 24, 2:57 PM PST | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 18 hr |
| Nov 24, 11:38 PM PST | Freeze Warning | MTR | Monterey, San Benito | 33 hr |
| Nov 25, 12:11 AM PST | Freeze Warning | VEF | San Bernardino | 32 hr |
| Nov 25, 12:18 AM PST | Freeze Warning | PSR | San Bernardino | 32 hr |
| Nov 25, 8:25 AM PST | Freeze Warning | STO | 49 hr | |
| Nov 25, 8:44 AM PST | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 23 hr |
| Nov 25, 2:00 PM PST | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Nov 26, 2:51 AM PST | Freeze Warning | MTR | Monterey, San Benito | 30 hr |
| Nov 26, 8:04 AM PST | Freeze Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara | 24 hr |
| Nov 26, 1:59 PM PST | Freeze Warning | EKA | Humboldt, Mendocino | 19 hr |
| Nov 27, 2:30 AM PST | Freeze Warning | STO | 31 hr | |
| Nov 27, 8:52 AM PST | Freeze Warning | MTR | Monterey, San Benito | 24 hr |
| Dec 7, 2:09 PM PST | Freeze Warning | MTR | Marin, Monterey, Napa, San Benito, Sonoma | 19 hr |
| Dec 8, 12:17 AM PST | Freeze Warning | MTR | Marin, Monterey, Napa, San Benito, Sonoma | 33 hr |
| Dec 8, 3:17 AM PST | Freeze Warning | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 5 days |
| Dec 13, 1:33 AM PST | Freeze Warning | MTR | Monterey, San Benito | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mendocino County20
- Monterey County19
- San Benito County18
- Humboldt County14
- Marin County13
- Napa County13
- Sonoma County13
- Los Angeles County12
- Santa Clara County11
- Lake County11
- San Luis Obispo County10
- Alameda County9
- Contra Costa County9
- Del Norte County9
- Fresno County8
- Kings County8
- Madera County8
- Mariposa County8
- Merced County8
- Tulare County8
- Santa Barbara County8
- Kern County7
- Siskiyou County7
- San Bernardino County6
- San Mateo County5
- Santa Cruz County5
- Modoc County5
- Riverside County4
- Ventura County2
- Imperial County1
- San Diego County1
- Lassen County1
- Plumas County1
- Sierra County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.