Frost dates in San Luis Obispo County, California
The average last spring frost in San Luis Obispo County falls Jan 16 to Apr 4 and the average first fall frost Nov 5 to Feb 1 (next year), depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 10a to 9b. Places: Arroyo Grande, Atascadero, Avila Beach, California Polytechnic State University, Cambria, Cayucos. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 93401 | San Luis Obispo | Jan 31 | Dec 11 | 9b |
| 93402 | Los Osos | Jan 19 | Jan 14 (next year) | 10a |
| 93405 | San Luis Obispo | Jan 16 | Dec 25 | 9b |
| 93407 | California Polytechnic State University | Jan 16 | Dec 25 | 9b |
| 93408 | Jan 16 | Dec 25 | 10a | |
| 93409 | Jan 16 | Dec 25 | 9b | |
| 93410 | California Polytechnic State University | Jan 16 | Dec 25 | 9b |
| 93420 | Arroyo Grande | Jan 31 | Dec 11 | 9b |
| 93422 | Atascadero | Jan 19 | Jan 14 (next year) | 9a |
| 93424 | Avila Beach | Feb 1 | Jan 4 (next year) | 10a |
| 93428 | Cambria | Feb 13 | Feb 1 (next year) | 10a |
| 93430 | Cayucos | Jan 19 | Jan 14 (next year) | 10a |
| 93432 | Creston | Mar 15 | Nov 10 | 8b |
| 93433 | Grover Beach | Feb 1 | Jan 4 (next year) | 10a |
| 93442 | Morro Bay | Jan 19 | Jan 14 (next year) | 9b |
| 93444 | Nipomo | Feb 4 | Dec 13 | 9b |
| 93445 | Oceano | Feb 1 | Jan 4 (next year) | 10a |
| 93446 | El Paso de Robles (Paso Robles) | Mar 15 | Nov 10 | 9a |
| 93449 | Pismo Beach | Feb 1 | Jan 4 (next year) | 10a |
| 93452 | San Simeon | Feb 13 | Feb 1 (next year) | 10a |
| 93453 | Santa Margarita | Feb 4 | Dec 4 | 8b |
| 93461 | Shandon | Apr 4 | Nov 5 | 8b |
| 93465 | Templeton | Mar 15 | Nov 10 | 9a |
Nearby counties
Santa Barbara County Kings County Monterey County San Benito County Kern County Tulare County
All California counties · Download California frost dates (CSV)
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