California Frost Dates
California gives gardeners everything from cool, foggy coasts to hot inland valleys and snowy mountain country, so frost patterns vary widely across short distances. Coastal areas often enjoy mild conditions, while inland basins and higher elevations can hold spring frost later than newcomers expect.
Look up your exact frost dates
Frost timing shifts across California with elevation and distance from water. Enter your ZIP code for dates from your nearest weather station.
California locations
| ZIP | Area | Hardiness zone |
|---|---|---|
| 90095 | Los Angeles | 10b |
| 91101 | Pasadena | 10a |
| 91330 | Los Angeles | 10a |
| 91371 | Los Angeles | 9b |
| 91776 | San Gabriel | 10a |
| 91932 | Imperial Beach | 10b |
| 92135 | Coronado | 11a |
| 92620 | Irvine | 10a |
| 93030 | Oxnard | 10b |
| 93407 | California Polytechnic State University | 9b |
| 93410 | California Polytechnic State University | 9b |
| 94709 | Berkeley | 10a |
| 94720 | Berkeley | 10a |
| 95019 | Watsonville | 9b |
| 95110 | San Jose | 10a |
| 95207 | Stockton | 9b |
| 95444 | Graton | 9a |
| 95603 | North Auburn | 9b |
| 95822 | Sacramento | 9b |
| 96067 | Mount Shasta | 8a |
| 89010 | Dyer | 7a |
| 89019 | Sandy Valley | 8b |
| 89060 | Pahrump | 8b |
| 89061 | Pahrump | 8b |
| 89439 | Reno | 7a |
| 90001 | Florence-Graham | 10b |
| 90002 | Los Angeles | 10b |
| 90003 | Los Angeles | 10b |
| 90004 | Los Angeles | 10b |
| 90005 | Los Angeles | 10b |
| 90006 | Los Angeles | 10b |
| 90007 | Los Angeles | 10b |
| 90008 | Los Angeles | 10b |
| 90010 | Los Angeles | 10b |
| 90011 | Los Angeles | 10b |
| 90012 | Los Angeles | 10b |
| 90013 | Los Angeles | 10b |
| 90014 | Los Angeles | 10b |
| 90015 | Los Angeles | 10b |
| 90016 | Los Angeles | 10b |
| 90017 | Los Angeles | 10b |
| 90018 | Los Angeles | 10b |
| 90019 | Los Angeles | 10b |
| 90020 | Los Angeles | 10b |
| 90021 | Los Angeles | 10b |
| 90022 | East Los Angeles | 10b |
| 90023 | Los Angeles | 10b |
| 90024 | Los Angeles | 10b |
| 90025 | Los Angeles | 10b |
| 90026 | Los Angeles | 10b |
| 90027 | Los Angeles | 10b |
| 90028 | Los Angeles | 10b |
| 90029 | Los Angeles | 10b |
| 90031 | Los Angeles | 10b |
| 90032 | Los Angeles | 10b |
| 90033 | Los Angeles | 10b |
| 90034 | Los Angeles | 10b |
| 90035 | Los Angeles | 10b |
| 90036 | Los Angeles | 10b |
| 90037 | Los Angeles | 10b |
Source: NOAA 1991–2020 U.S. Climate Normals (public domain) and USDA 2023 Plant Hardiness Zone Map. Page updated Aug 4, 2026.