Frost dates by state
California Frost Dates
Among California's cities and towns that get frost every year, the average last spring frost runs from January 16 in Brawley to June 11 in Portola. In 272 towns, frost doesn't come every winter, so they get odds instead of dates. In 2 towns, frost is possible in any month.
Frost dates for every city and town in California
Dates are for 32°F at the NOAA station nearest the ZIP code at each California town's center. "Safer date" is when only 1 year in 10 still gets a frost, a good target for tomatoes and peppers.
| City | Average last frost | Safer date | Average first frost | Frost-free days |
|---|---|---|---|---|
| Adelanto | Mar 18 | Apr 12 | Nov 11 | 238 |
| Agoura Hills | Jan 24 | Mar 5 | Dec 15 | 325 |
| Alameda | Frost in 63% of winters | |||
| Albany | Frost in 22% of winters | |||
| Alhambra | Frost in 15% of winters | |||
| Aliso Viejo | Frost in 20% of winters | |||
| Alturas | Jun 3 | Jun 26 | Sep 13 | 102 |
| Amador City | Mar 4 | Apr 8 | Dec 11 | 282 |
| American Canyon | Mar 5 | Apr 16 | Nov 21 | 261 |
| Anaheim | Frost in under 1 winter in 10 | |||
| Anderson | Mar 3 | Apr 9 | Nov 21 | 263 |
| Angels | Feb 20 | Apr 7 | Dec 11 | 294 |
| Antioch | Frost in 81% of winters | |||
| Apple Valley | Mar 18 | Apr 12 | Nov 11 | 238 |
| Arcadia | Frost in 15% of winters | |||
| Arcata | Feb 22 | Mar 23 | Dec 7 | 288 |
| Arroyo Grande | Frost in 54% of winters | |||
| Artesia | Frost in under 1 winter in 10 | |||
| Arvin | Apr 28 | May 21 | Oct 26 | 181 |
| Atascadero | Frost in 15% of winters | |||
| Atherton | Frost in 88% of winters | |||
| Atwater | Mar 3 | Apr 10 | Nov 24 | 266 |
| Auburn | Feb 25 | Apr 7 | Dec 5 | 283 |
| Avalon | Frost in under 1 winter in 10 | |||
| Avenal | Feb 19 | Mar 15 | Nov 29 | 283 |
| Azusa | Apr 28 | May 27 | Nov 15 | 201 |
| Bakersfield | Jan 31 | Feb 27 | Dec 8 | 311 |
| Baldwin Park | Frost in 15% of winters | |||
| Banning | Jan 31 | Feb 28 | Dec 10 | 313 |
| Barstow | Feb 22 | Mar 24 | Nov 23 | 274 |
| Beaumont | Jan 31 | Feb 28 | Dec 10 | 313 |
| Bell | Frost in under 1 winter in 10 | |||
| Bell Gardens | Frost in under 1 winter in 10 | |||
| Bellflower | Frost in under 1 winter in 10 | |||
| Belmont | Frost in 88% of winters | |||
| Belvedere | Frost in 22% of winters | |||
| Benicia | Frost in 75% of winters | |||
| Berkeley | Frost in 27% of winters | |||
| Beverly Hills | Frost in under 1 winter in 10 | |||
| Big Bear Lake | May 27 | Jun 9 | Oct 4 | 130 |
| Biggs | Jan 29 | Feb 28 | Dec 7 | 312 |
| Bishop | Apr 29 | May 27 | Oct 15 | 169 |
| Blue Lake | Feb 22 | Mar 23 | Dec 7 | 288 |
| Blythe | Frost in 80% of winters | |||
| Bradbury | Apr 28 | May 27 | Nov 15 | 201 |
| Brawley | Jan 16 | Feb 17 | Dec 19 | 337 |
| Brea | Frost in under 1 winter in 10 | |||
| Brentwood | Frost in 81% of winters | |||
| Brisbane | Frost in 12% of winters | |||
| Buellton | Frost in 81% of winters | |||
| Buena Park | Frost in under 1 winter in 10 | |||
| Burbank | Frost in 55% of winters | |||
| Burlingame | Frost in 12% of winters | |||
| Calabasas | Jan 24 | Mar 5 | Dec 15 | 325 |
| Calexico | Frost in 54% of winters | |||
| California City | Mar 15 | Apr 17 | Nov 17 | 247 |
| Calimesa | Frost in 88% of winters | |||
| Calipatria | Jan 16 | Feb 17 | Dec 19 | 337 |
| Calistoga | Mar 2 | Apr 18 | Nov 23 | 266 |
| Camarillo | Frost in 29% of winters | |||
| Campbell | Feb 2 | Mar 14 | Dec 6 | 307 |
| Canyon Lake | Jan 28 | Feb 27 | Dec 18 | 324 |
| Capitola | Jan 29 | Feb 28 | Dec 13 | 318 |
| Carlsbad | Frost in under 1 winter in 10 | |||
| Carmel-by-the-Sea | Frost in 20% of winters | |||
| Carpinteria | Frost in 11% of winters | |||
| Carson | Frost in under 1 winter in 10 | |||
| Cathedral City | Frost in 11% of winters | |||
| Ceres | Jan 31 | Feb 25 | Dec 5 | 308 |
| Cerritos | Frost in under 1 winter in 10 | |||
| Chico | Mar 4 | Apr 2 | Nov 17 | 258 |
| Chino | Frost in 85% of winters | |||
| Chino Hills | Frost in 85% of winters | |||
| Chowchilla | Feb 12 | Mar 17 | Nov 30 | 291 |
| Chula Vista | Frost in 25% of winters | |||
| Citrus Heights | Frost in 81% of winters | |||
| Claremont | Frost in 65% of winters | |||
| Clayton | Mar 8 | Apr 15 | Dec 22 | 289 |
| Clearlake | Apr 10 | Apr 30 | Nov 6 | 210 |
| Cloverdale | Feb 25 | Apr 2 | Dec 3 | 281 |
| Clovis | Frost in 85% of winters | |||
| Coachella | Frost in 30% of winters | |||
| Coalinga | Feb 14 | Mar 8 | Nov 30 | 289 |
| Colfax | Apr 3 | Apr 29 | Nov 24 | 235 |
| Colma | Frost in 22% of winters | |||
| Colton | Frost in 45% of winters | |||
| Colusa | Feb 14 | Mar 31 | Dec 1 | 290 |
| Commerce | Frost in under 1 winter in 10 | |||
| Compton | Frost in under 1 winter in 10 | |||
| Concord | Frost in 79% of winters | |||
| Corcoran | Feb 15 | Mar 10 | Nov 27 | 285 |
| Corning | Feb 25 | Apr 6 | Dec 2 | 280 |
| Corona | Frost in 58% of winters | |||
| Coronado | Frost in under 1 winter in 10 | |||
| Corte Madera | Frost in 86% of winters | |||
| Costa Mesa | Frost in under 1 winter in 10 | |||
| Cotati | Feb 28 | Apr 6 | Nov 25 | 270 |
| Covina | Frost in 65% of winters | |||
| Crescent City | Mar 11 | Apr 12 | Nov 23 | 257 |
| Cudahy | Frost in under 1 winter in 10 | |||
| Culver City | Frost in under 1 winter in 10 | |||
| Cupertino | Mar 21 | Apr 28 | Dec 15 | 269 |
| Cypress | Frost in under 1 winter in 10 | |||
| Daly City | Frost in 22% of winters | |||
| Dana Point | Frost in 20% of winters | |||
| Danville | Mar 8 | Apr 15 | Dec 22 | 289 |
| Davis | Feb 10 | Mar 11 | Dec 1 | 294 |
| Del Mar | Frost in under 1 winter in 10 | |||
| Del Rey Oaks | Frost in 53% of winters | |||
| Delano | Jan 31 | Mar 5 | Dec 8 | 311 |
| Desert Hot Springs | Frost in 11% of winters | |||
| Diamond Bar | Frost in 65% of winters | |||
| Dinuba | Jan 23 | Feb 27 | Dec 13 | 324 |
| Dixon | Feb 10 | Mar 11 | Dec 1 | 294 |
| Dorris | Jun 5 | Jun 22 | Sep 20 | 107 |
| Dos Palos | Jan 26 | Feb 20 | Dec 10 | 318 |
| Downey | Frost in under 1 winter in 10 | |||
| Duarte | Apr 28 | May 27 | Nov 15 | 201 |
| Dublin | Feb 15 | Mar 13 | Dec 2 | 290 |
| Dunsmuir | Apr 23 | May 12 | Oct 27 | 187 |
| East Palo Alto | Feb 1 | Mar 4 | Dec 7 | 309 |
| Eastvale | Frost in 85% of winters | |||
| El Cajon | Frost in 73% of winters | |||
| El Centro | Frost in 54% of winters | |||
| El Cerrito | Frost in 27% of winters | |||
| El Monte | Frost in 15% of winters | |||
| El Paso de Robles (Paso Robles) | Mar 15 | Apr 13 | Nov 10 | 240 |
| El Segundo | Frost in under 1 winter in 10 | |||
| Elk Grove | Feb 2 | Mar 5 | Dec 2 | 303 |
| Emeryville | Frost in under 1 winter in 10 | |||
| Encinitas | Frost in under 1 winter in 10 | |||
| Escalon | Feb 6 | Feb 28 | Dec 1 | 298 |
| Escondido | Frost in 39% of winters | |||
| Etna | May 20 | Jun 12 | Oct 5 | 138 |
| Eureka | Feb 22 | Mar 23 | Dec 7 | 288 |
| Exeter | Jan 23 | Feb 27 | Dec 13 | 324 |
| Fairfax | Frost in 70% of winters | |||
| Fairfield | Frost in 88% of winters | |||
| Farmersville | Jan 23 | Feb 27 | Dec 13 | 324 |
| Ferndale | Frost in 84% of winters | |||
| Fillmore | Frost in 29% of winters | |||
| Firebaugh | Frost in 90% of winters | |||
| Folsom | Frost in 81% of winters | |||
| Fontana | Frost in 41% of winters | |||
| Fort Bragg | Mar 2 | Apr 6 | Dec 1 | 274 |
| Fort Jones | Apr 30 | May 20 | Oct 18 | 171 |
| Fortuna | Frost in 84% of winters | |||
| Foster City | Frost in 88% of winters | |||
| Fountain Valley | Frost in under 1 winter in 10 | |||
| Fowler | Jan 30 | Mar 4 | Dec 11 | 315 |
| Fremont | Frost in 43% of winters | |||
| Fresno | Frost in 85% of winters | |||
| Fullerton | Frost in under 1 winter in 10 | |||
| Galt | Feb 9 | Mar 7 | Dec 5 | 299 |
| Garden Grove | Frost in under 1 winter in 10 | |||
| Gardena | Frost in under 1 winter in 10 | |||
| Gilroy | Feb 24 | Apr 4 | Nov 27 | 276 |
| Glendale | Frost in 13% of winters | |||
| Glendora | Frost in 65% of winters | |||
| Goleta | Frost in 81% of winters | |||
| Gonzales | Apr 23 | Jun 4 | Nov 3 | 194 |
| Grand Terrace | Frost in 45% of winters | |||
| Grass Valley | Apr 14 | May 7 | Nov 20 | 220 |
| Greenfield | Apr 23 | Jun 4 | Nov 3 | 194 |
| Gridley | Jan 29 | Feb 28 | Dec 7 | 312 |
| Grover Beach | Frost in 54% of winters | |||
| Guadalupe | Feb 4 | Mar 16 | Dec 13 | 312 |
| Gustine | Feb 26 | Apr 21 | Nov 29 | 276 |
| Half Moon Bay | Frost in 82% of winters | |||
| Hanford | Feb 7 | Mar 4 | Dec 1 | 297 |
| Hawaiian Gardens | Frost in under 1 winter in 10 | |||
| Hawthorne | Frost in under 1 winter in 10 | |||
| Hayward | Frost in 45% of winters | |||
| Healdsburg | Feb 15 | Mar 17 | Dec 2 | 290 |
| Hemet | Jan 31 | Feb 28 | Dec 10 | 313 |
| Hercules | Frost in 75% of winters | |||
| Hermosa Beach | Frost in under 1 winter in 10 | |||
| Hesperia | Feb 28 | Apr 3 | Dec 1 | 276 |
| Hidden Hills | Jan 24 | Mar 5 | Dec 15 | 325 |
| Highland | Frost in 88% of winters | |||
| Hillsborough | Frost in 12% of winters | |||
| Hollister | Feb 19 | Mar 28 | Dec 1 | 285 |
| Holtville | Frost in 54% of winters | |||
| Hughson | Jan 31 | Feb 25 | Dec 5 | 308 |
| Huntington Beach | Frost in under 1 winter in 10 | |||
| Huntington Park | Frost in under 1 winter in 10 | |||
| Huron | Feb 27 | Apr 13 | Nov 26 | 272 |
| Imperial | Frost in 54% of winters | |||
| Imperial Beach | Frost in under 1 winter in 10 | |||
| Indian Wells | Frost in 30% of winters | |||
| Indio | Frost in 30% of winters | |||
| Industry | Frost in 15% of winters | |||
| Inglewood | Frost in under 1 winter in 10 | |||
| Ione | Frost in 88% of winters | |||
| Irvine | Frost in 50% of winters | |||
| Irwindale | Frost in 15% of winters | |||
| Isleton | Frost in 81% of winters | |||
| Jackson | Mar 4 | Apr 8 | Dec 11 | 282 |
| Jurupa Valley | Frost in 58% of winters | |||
| Kerman | Feb 18 | Mar 18 | Nov 27 | 282 |
| King City | Feb 23 | Mar 31 | Nov 22 | 272 |
| Kingsburg | Feb 20 | Mar 21 | Nov 23 | 276 |
| La Canada Flintridge | Frost in 13% of winters | |||
| La Habra | Frost in under 1 winter in 10 | |||
| La Habra Heights | Frost in under 1 winter in 10 | |||
| La Mesa | Frost in 73% of winters | |||
| La Mirada | Frost in under 1 winter in 10 | |||
| La Palma | Frost in under 1 winter in 10 | |||
| La Puente | Frost in 15% of winters | |||
| La Quinta | Frost in 30% of winters | |||
| La Verne | Frost in 65% of winters | |||
| Lafayette | Frost in 80% of winters | |||
| Laguna Beach | Frost in 20% of winters | |||
| Laguna Hills | Frost in 20% of winters | |||
| Laguna Niguel | Frost in 20% of winters | |||
| Laguna Woods | Frost in 20% of winters | |||
| Lake Elsinore | Jan 28 | Feb 27 | Dec 18 | 324 |
| Lake Forest | Frost in 50% of winters | |||
| Lakeport | Mar 5 | Apr 7 | Nov 21 | 261 |
| Lakewood | Frost in under 1 winter in 10 | |||
| Lancaster | Apr 3 | Apr 23 | Nov 1 | 212 |
| Larkspur | Frost in 86% of winters | |||
| Lathrop | Feb 6 | Feb 28 | Dec 1 | 298 |
| Lawndale | Frost in under 1 winter in 10 | |||
| Lemon Grove | Frost in under 1 winter in 10 | |||
| Lemoore | Feb 24 | Mar 30 | Nov 22 | 271 |
| Lincoln | Feb 25 | Apr 7 | Dec 5 | 283 |
| Lindsay | Feb 20 | Mar 26 | Nov 30 | 283 |
| Live Oak | Frost in 89% of winters | |||
| Livermore | Feb 15 | Mar 13 | Dec 2 | 290 |
| Livingston | Mar 28 | Apr 27 | Nov 14 | 231 |
| Lodi | Feb 9 | Mar 7 | Dec 5 | 299 |
| Loma Linda | Frost in 88% of winters | |||
| Lomita | Frost in 11% of winters | |||
| Lompoc | Frost in 81% of winters | |||
| Long Beach | Frost in under 1 winter in 10 | |||
| Loomis | Feb 25 | Apr 7 | Dec 5 | 283 |
| Los Alamitos | Frost in under 1 winter in 10 | |||
| Los Altos | Frost in 70% of winters | |||
| Los Altos Hills | Mar 21 | Apr 28 | Dec 15 | 269 |
| Los Angeles | Frost in under 1 winter in 10 | |||
| Los Banos | Jan 26 | Feb 20 | Dec 10 | 318 |
| Los Gatos | Feb 2 | Mar 14 | Dec 6 | 307 |
| Loyalton | May 9 | Jun 2 | Oct 17 | 161 |
| Lynwood | Frost in under 1 winter in 10 | |||
| Madera | Feb 12 | Mar 17 | Nov 30 | 291 |
| Malibu | Frost in under 1 winter in 10 | |||
| Mammoth Lakes | Jun 10 | Jun 30 | Sep 17 | 99 |
| Manhattan Beach | Frost in under 1 winter in 10 | |||
| Manteca | Feb 6 | Feb 28 | Dec 1 | 298 |
| Maricopa | Jan 24 | Mar 12 | Dec 17 | 327 |
| Marina | Feb 4 | Mar 11 | Dec 6 | 305 |
| Martinez | Feb 28 | Apr 5 | Nov 22 | 267 |
| Marysville | Frost in 89% of winters | |||
| Maywood | Frost in under 1 winter in 10 | |||
| McFarland | Jan 31 | Mar 5 | Dec 8 | 311 |
| Mendota | Feb 27 | Apr 13 | Nov 26 | 272 |
| Menifee | Jan 28 | Feb 27 | Dec 18 | 324 |
| Menlo Park | Feb 1 | Mar 4 | Dec 7 | 309 |
| Merced | Mar 3 | Apr 10 | Nov 24 | 266 |
| Mill Valley | Frost in 86% of winters | |||
| Millbrae | Frost in 12% of winters | |||
| Milpitas | Frost in 76% of winters | |||
| Mission Viejo | Frost in 50% of winters | |||
| Modesto | Jan 31 | Feb 25 | Dec 5 | 308 |
| Monrovia | Apr 28 | May 27 | Nov 15 | 201 |
| Montague | Apr 30 | May 20 | Oct 18 | 171 |
| Montclair | Frost in 65% of winters | |||
| Monte Sereno | Feb 2 | Mar 14 | Dec 6 | 307 |
| Montebello | Frost in 15% of winters | |||
| Monterey | Frost in 47% of winters | |||
| Monterey Park | Frost in 15% of winters | |||
| Moorpark | Frost in 29% of winters | |||
| Moraga | Frost in 27% of winters | |||
| Moreno Valley | Frost in 45% of winters | |||
| Morgan Hill | Feb 24 | Apr 4 | Nov 27 | 276 |
| Morro Bay | Frost in 15% of winters | |||
| Mount Shasta | May 6 | May 28 | Oct 12 | 159 |
| Mountain View | Frost in 70% of winters | |||
| Murrieta | Frost in 17% of winters | |||
| Napa | Mar 5 | Apr 16 | Nov 21 | 261 |
| National City | Frost in under 1 winter in 10 | |||
| Needles | Frost in 37% of winters | |||
| Nevada City | Apr 14 | May 7 | Nov 20 | 220 |
| Newark | Frost in 43% of winters | |||
| Newman | Feb 26 | Apr 21 | Nov 29 | 276 |
| Newport Beach | Frost in under 1 winter in 10 | |||
| Norco | Frost in 85% of winters | |||
| Norwalk | Frost in under 1 winter in 10 | |||
| Novato | Frost in 70% of winters | |||
| Oakdale | Jan 31 | Feb 25 | Dec 5 | 308 |
| Oakland | Frost in under 1 winter in 10 | |||
| Oakley | Frost in 81% of winters | |||
| Oceanside | Jan 23 | Feb 22 | Dec 11 | 322 |
| Ojai | Mar 21 | Apr 15 | Nov 15 | 239 |
| Ontario | Frost in 41% of winters | |||
| Orange | Frost in under 1 winter in 10 | |||
| Orange Cove | Jun 1 | Jun 15 | Oct 7 | 128 |
| Orinda | Frost in 27% of winters | |||
| Orland | Feb 25 | Apr 6 | Dec 2 | 280 |
| Oroville | Jan 29 | Feb 28 | Dec 7 | 312 |
| Oxnard | Frost in under 1 winter in 10 | |||
| Pacific Grove | Frost in 20% of winters | |||
| Pacifica | Frost in 20% of winters | |||
| Palm Desert | Frost in 30% of winters | |||
| Palm Springs | Frost in 21% of winters | |||
| Palmdale | Mar 10 | Apr 11 | Nov 19 | 254 |
| Palo Alto | Feb 1 | Mar 4 | Dec 7 | 309 |
| Palos Verdes Estates | Frost in 11% of winters | |||
| Paradise | Feb 7 | Apr 1 | Dec 18 | 314 |
| Paramount | Frost in under 1 winter in 10 | |||
| Parlier | Jan 30 | Mar 4 | Dec 11 | 315 |
| Pasadena | Frost in 13% of winters | |||
| Patterson | Feb 26 | Apr 21 | Nov 29 | 276 |
| Perris | Jan 28 | Feb 27 | Dec 18 | 324 |
| Petaluma | Feb 28 | Apr 6 | Nov 25 | 270 |
| Pico Rivera | Frost in 15% of winters | |||
| Piedmont | Frost in under 1 winter in 10 | |||
| Pinole | Frost in 22% of winters | |||
| Pismo Beach | Frost in 54% of winters | |||
| Pittsburg | Frost in 79% of winters | |||
| Placentia | Frost in under 1 winter in 10 | |||
| Placerville | Mar 31 | Apr 23 | Nov 21 | 235 |
| Pleasant Hill | Frost in 80% of winters | |||
| Pleasanton | Feb 15 | Mar 13 | Dec 2 | 290 |
| Plymouth | Mar 4 | Apr 8 | Dec 11 | 282 |
| Point Arena | Mar 5 | Apr 7 | Nov 21 | 261 |
| Pomona | Frost in 65% of winters | |||
| Port Hueneme | Frost in under 1 winter in 10 | |||
| Porterville | Feb 20 | Mar 26 | Nov 30 | 283 |
| Portola | Jun 11 | Jul 2 | Sep 10 | 91 |
| Portola Valley | Feb 25 | Apr 11 | Nov 25 | 273 |
| Poway | Frost in 21% of winters | |||
| Rancho Cordova | Frost in 81% of winters | |||
| Rancho Cucamonga | Frost in 41% of winters | |||
| Rancho Mirage | Frost in 11% of winters | |||
| Rancho Palos Verdes | Frost in 11% of winters | |||
| Rancho Santa Margarita | Frost in under 1 winter in 10 | |||
| Red Bluff | Feb 22 | Mar 30 | Nov 29 | 280 |
| Redding | Mar 3 | Apr 9 | Nov 21 | 263 |
| Redlands | Frost in 88% of winters | |||
| Redondo Beach | Frost in under 1 winter in 10 | |||
| Redwood City | Frost in 88% of winters | |||
| Reedley | Jan 30 | Mar 4 | Dec 11 | 315 |
| Rialto | Frost in 45% of winters | |||
| Richmond | Frost in 22% of winters | |||
| Ridgecrest | Mar 11 | Apr 9 | Nov 12 | 246 |
| Rio Dell | Frost in 84% of winters | |||
| Rio Vista | Frost in 81% of winters | |||
| Ripon | Feb 6 | Feb 28 | Dec 1 | 298 |
| Riverbank | Jan 31 | Feb 25 | Dec 5 | 308 |
| Riverside | Frost in 69% of winters | |||
| Rocklin | Feb 25 | Apr 7 | Dec 5 | 283 |
| Rohnert Park | Feb 25 | Mar 29 | Dec 1 | 279 |
| Rolling Hills | Frost in 11% of winters | |||
| Rolling Hills Estates | Frost in 11% of winters | |||
| Rosemead | Frost in 15% of winters | |||
| Roseville | Feb 25 | Apr 7 | Dec 5 | 283 |
| Ross | Frost in 86% of winters | |||
| Sacramento | Frost in 81% of winters | |||
| Salinas | Frost in 90% of winters | |||
| San Anselmo | Frost in 70% of winters | |||
| San Bernardino | May 5 | May 31 | Nov 2 | 181 |
| San Bruno | Frost in 20% of winters | |||
| San Buenaventura (Ventura) | Frost in under 1 winter in 10 | |||
| San Carlos | Frost in 88% of winters | |||
| San Clemente | Frost in 20% of winters | |||
| San Diego | Frost in under 1 winter in 10 | |||
| San Dimas | Frost in 65% of winters | |||
| San Fernando | Frost in 18% of winters | |||
| San Francisco | Frost in 86% of winters | |||
| San Gabriel | Frost in 15% of winters | |||
| San Jacinto | Jan 31 | Feb 28 | Dec 10 | 313 |
| San Joaquin | Feb 27 | Apr 13 | Nov 26 | 272 |
| San Jose | Frost in 56% of winters | |||
| San Juan Bautista | Feb 19 | Mar 28 | Dec 1 | 285 |
| San Juan Capistrano | Frost in 20% of winters | |||
| San Leandro | Frost in 63% of winters | |||
| San Luis Obispo | Frost in 68% of winters | |||
| San Marcos | Frost in 39% of winters | |||
| San Marino | Frost in 13% of winters | |||
| San Mateo | Frost in 12% of winters | |||
| San Pablo | Frost in 22% of winters | |||
| San Rafael | Frost in 70% of winters | |||
| San Ramon | Feb 15 | Mar 13 | Dec 2 | 290 |
| Sand City | Frost in 47% of winters | |||
| Sanger | Jan 30 | Mar 4 | Dec 11 | 315 |
| Santa Ana | Frost in under 1 winter in 10 | |||
| Santa Barbara | Frost in 11% of winters | |||
| Santa Clara | Frost in 76% of winters | |||
| Santa Clarita | Frost in 37% of winters | |||
| Santa Cruz | Jan 29 | Feb 28 | Dec 13 | 318 |
| Santa Fe Springs | Frost in under 1 winter in 10 | |||
| Santa Maria | Feb 4 | Mar 16 | Dec 13 | 312 |
| Santa Monica | Frost in under 1 winter in 10 | |||
| Santa Paula | Mar 21 | Apr 15 | Nov 15 | 239 |
| Santa Rosa | Feb 25 | Mar 29 | Dec 1 | 279 |
| Santee | Frost in 73% of winters | |||
| Saratoga | Feb 2 | Mar 14 | Dec 6 | 307 |
| Sausalito | Frost in 22% of winters | |||
| Scotts Valley | Mar 25 | Apr 21 | Nov 11 | 231 |
| Seal Beach | Frost in under 1 winter in 10 | |||
| Seaside | Frost in 53% of winters | |||
| Sebastopol | Mar 20 | Apr 19 | Nov 13 | 238 |
| Selma | Feb 20 | Mar 21 | Nov 23 | 276 |
| Shafter | Jan 31 | Feb 27 | Dec 5 | 308 |
| Shasta Lake | Frost in 87% of winters | |||
| Sierra Madre | Apr 28 | May 27 | Nov 15 | 201 |
| Signal Hill | Frost in under 1 winter in 10 | |||
| Simi Valley | Jan 24 | Mar 5 | Dec 15 | 325 |
| Solana Beach | Frost in under 1 winter in 10 | |||
| Soledad | Apr 23 | Jun 4 | Nov 3 | 194 |
| Solvang | Apr 11 | May 6 | Nov 8 | 211 |
| Sonoma | Mar 2 | Apr 5 | Nov 27 | 270 |
| Sonora | Apr 9 | Apr 30 | Nov 9 | 214 |
| South El Monte | Frost in 15% of winters | |||
| South Gate | Frost in under 1 winter in 10 | |||
| South Lake Tahoe | Frost possible any month | |||
| South Pasadena | Frost in 13% of winters | |||
| South San Francisco | Frost in 12% of winters | |||
| St. Helena | Apr 7 | Apr 30 | Dec 5 | 242 |
| Stanton | Frost in under 1 winter in 10 | |||
| Stockton | Feb 5 | Mar 11 | Dec 8 | 306 |
| Suisun City | Frost in 88% of winters | |||
| Sunnyvale | Frost in 70% of winters | |||
| Susanville | May 16 | Jun 5 | Oct 8 | 145 |
| Sutter Creek | Mar 4 | Apr 8 | Dec 11 | 282 |
| Taft | Jan 24 | Mar 12 | Dec 17 | 327 |
| Tehachapi | Apr 28 | May 21 | Oct 26 | 181 |
| Tehama | Feb 22 | Mar 30 | Nov 29 | 280 |
| Temecula | Frost in 17% of winters | |||
| Temple City | Frost in 15% of winters | |||
| Thousand Oaks | Frost in 29% of winters | |||
| Tiburon | Frost in 22% of winters | |||
| Torrance | Frost in under 1 winter in 10 | |||
| Tracy | Feb 25 | Apr 6 | Nov 26 | 274 |
| Trinidad | Mar 8 | Apr 15 | Nov 30 | 267 |
| Truckee | Frost possible any month | |||
| Tulare | Jan 23 | Feb 27 | Dec 13 | 324 |
| Tulelake | Jun 6 | Jun 22 | Sep 28 | 114 |
| Turlock | Frost in 68% of winters | |||
| Tustin | Frost in under 1 winter in 10 | |||
| Twentynine Palms | Jan 24 | Feb 22 | Dec 10 | 320 |
| Ukiah | Mar 19 | Apr 15 | Nov 20 | 246 |
| Union City | Frost in 65% of winters | |||
| Upland | Frost in 41% of winters | |||
| Vacaville | Feb 18 | Mar 25 | Nov 28 | 283 |
| Vallejo | Frost in 75% of winters | |||
| Vernon | Frost in under 1 winter in 10 | |||
| Victorville | Mar 18 | Apr 12 | Nov 11 | 238 |
| Villa Park | Frost in under 1 winter in 10 | |||
| Visalia | Jan 23 | Feb 27 | Dec 13 | 324 |
| Vista | Frost in 35% of winters | |||
| Walnut | Frost in 65% of winters | |||
| Walnut Creek | Mar 8 | Apr 15 | Dec 22 | 289 |
| Wasco | Jan 31 | Feb 27 | Dec 5 | 308 |
| Waterford | Frost in 68% of winters | |||
| Watsonville | Jan 31 | Mar 9 | Dec 9 | 312 |
| Weed | May 6 | May 28 | Oct 12 | 159 |
| West Covina | Frost in 65% of winters | |||
| West Hollywood | Frost in under 1 winter in 10 | |||
| West Sacramento | Feb 2 | Mar 5 | Dec 2 | 303 |
| Westlake Village | Jan 24 | Mar 5 | Dec 15 | 325 |
| Westminster | Frost in under 1 winter in 10 | |||
| Westmorland | Jan 16 | Feb 17 | Dec 19 | 337 |
| Wheatland | Feb 11 | Mar 12 | Nov 30 | 292 |
| Whittier | Frost in under 1 winter in 10 | |||
| Wildomar | Jan 28 | Feb 27 | Dec 18 | 324 |
| Williams | Feb 14 | Mar 31 | Dec 1 | 290 |
| Willits | May 5 | May 31 | Oct 9 | 157 |
| Willows | Feb 21 | Apr 9 | Dec 6 | 288 |
| Windsor | Mar 2 | Apr 2 | Nov 20 | 263 |
| Winters | Feb 18 | Mar 14 | Nov 30 | 285 |
| Woodlake | Feb 5 | Mar 20 | Dec 8 | 306 |
| Woodland | Feb 7 | Mar 11 | Dec 5 | 301 |
| Woodside | Feb 25 | Apr 11 | Nov 25 | 273 |
| Yorba Linda | Frost in under 1 winter in 10 | |||
| Yountville | Feb 3 | Mar 13 | Dec 4 | 304 |
| Yreka | Apr 30 | May 20 | Oct 18 | 171 |
| Yuba City | Feb 11 | Mar 12 | Nov 30 | 292 |
| Yucaipa | Frost in 88% of winters | |||
| Yucca Valley | Feb 16 | Mar 24 | Dec 10 | 297 |
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020. City centers from the US Census Bureau. Click a city for its nearest station and, where it has frost dates, hard-freeze dates and a vegetable planting calendar. See how we calculate.
Frequently asked questions
When is the last frost in California City, CA?
The average last spring frost in California City is March 15, and only 1 year in 10 has a frost after April 17. The average first fall frost is November 17. These come from NOAA's 1991–2020 records at the Mojave station.
When should I plant tomatoes in California?
UNH Extension times tomato transplants for 1 to 2 weeks after the average last frost. In California City that's about Mar 22 to Mar 29; for a 9 in 10 chance of no later frost, wait until Apr 17. Look up your ZIP code for your own dates and a full vegetable planting calendar.
More for California: California climate zones (insulation) · California planting zones · Frost line depth by state