Frost dates in California
Across 332 NOAA stations in California, the average last spring frost ranges from January 1 at Bodega 6 Wsw to December 31 at Burbank Glendale Pasadena Airport.
| Adin Rs | May 28 | September 29 | 125 |
| Alpine | February 12 | December 24 | 317 |
| Alturas | June 3 | September 13 | 97 |
| Alturas Muni Airport | June 3 | September 12 | 97 |
| Angwin Pacific Union College | April 7 | December 5 | 245 |
| Antioch Pumping Plt #3 | January 12 | December 19 | 343 |
| Arcata Eureka Airport | March 8 | November 30 | 262 |
| Ash Mtn | March 12 | December 9 | 273 |
| Auberry 2 Nw | March 25 | December 3 | 253 |
| Auburn | February 25 | December 5 | 286 |
| Baker | February 14 | November 27 | 287 |
| Bakersfield 5 Nw | January 31 | December 8 | 312 |
| Bakersfield Airport | January 17 | December 15 | 334 |
| Balch Pwr House | February 23 | December 12 | 294 |
| Barstow | February 22 | November 23 | 271 |
| Barstow Daggett Airport | February 19 | November 26 | 279 |
| Ben Lomond #4 | March 25 | November 11 | 231 |
| Berkeley | January 3 | January 1 | 365 |
| Big Bar 4 E | April 16 | October 31 | 197 |
| Big Bear Lake | May 27 | October 4 | 131 |
| Big Sur Stn | February 13 | December 27 | 323 |
| Bishop Airport | April 29 | October 15 | 166 |
| Blue Canyon Airport | May 4 | November 4 | 183 |
| Blythe | January 25 | December 12 | 325 |
| Blythe Airport | January 5 | December 21 | 347 |
| Bodega 6 Wsw | January 1 | December 31 | 365 |
| Borrego Desert Park | January 10 | January 1 | 365 |
| Bowman Dam | May 12 | October 29 | 167 |
| Brawley 2 Sw | January 16 | December 19 | 335 |
| Burbank Glendale Pasadena Airport | December 31 | December 28 | 365 |
| Burbank Valley Pump Plt | January 2 | December 26 | 364 |
| Burney | June 3 | September 14 | 102 |
| Buttonwillow | February 9 | November 26 | 289 |
| Cachuma Lake | April 11 | November 8 | 209 |
| Calaveras Big Trees | May 7 | October 28 | 169 |
| Calistoga | March 2 | November 23 | 263 |
| Callahan | May 20 | October 5 | 135 |
| Camarillo Airport | December 31 | December 28 | 365 |
| Camp Pardee | January 22 | December 17 | 332 |
| Camp Pendleton Mcas | February 16 | December 8 | 298 |
| Campo | April 30 | October 26 | 174 |
| Campo Asos | April 29 | November 1 | 184 |
| Canby 3 Sw | June 1 | September 16 | 106 |
| Canyon Dam | May 18 | October 8 | 143 |
| Carmel Valley | February 20 | December 8 | 294 |
| Cecilville | April 27 | October 21 | 176 |
| Cedarville | May 15 | October 1 | 137 |
| Cherry Valley Dam | May 2 | November 4 | 183 |
| Chester | May 28 | September 28 | 124 |
| Chico Univ Farm | March 4 | November 17 | 257 |
| China Lake Naf | March 11 | November 12 | 244 |
| Chino Airport | January 17 | December 19 | 335 |
| Chiriaco Summit | February 5 | December 17 | 313 |
| Clearlake 4 Se | April 10 | November 6 | 209 |
| Cloverdale | February 25 | December 3 | 279 |
| Coalinga | February 14 | November 30 | 292 |
| Colfax | April 3 | November 24 | 233 |
| Colusa 2 Ssw | February 14 | December 1 | 293 |
| Concord Buchanan Fld | January 9 | December 14 | 343 |
| Concord Wwtp | January 7 | December 19 | 346 |
| Copco #1 Dam | May 4 | October 21 | 168 |
| Corcoran Irrig Dist | February 15 | November 27 | 285 |
| Covelo | April 23 | October 19 | 179 |
| Crescent City 3 Nnw | March 11 | November 23 | 256 |
| Crescent City Mcnamara Airport | January 30 | December 25 | 334 |
| Cuyamaca | April 19 | October 27 | 190 |
| Davis 2 Wsw Exp Farm | February 10 | December 1 | 295 |
| De Sabla | April 17 | November 11 | 206 |
| Death Valley Np | January 1 | December 19 | 350 |
| Delano | January 31 | December 8 | 309 |
| Desert Resorts Rgnl Airport | February 7 | December 2 | 298 |
| Dobbins 1 S | April 1 | November 17 | 229 |
| Downieville | April 28 | October 25 | 178 |
| Doyle 4 Sse | May 21 | October 1 | 130 |
| Dunsmuir Trtmt Pl | April 23 | October 27 | 185 |
| Eagle Mtn | January 10 | January 8 | 365 |
| East Park Rsvr | April 6 | November 10 | 219 |
| El Cajon | January 6 | December 21 | 350 |
| El Capitan Dam | March 19 | December 8 | 270 |
| El Centro 2 Ssw | January 3 | December 27 | 363 |
| El Centro Naf | January 6 | December 21 | 347 |
| El Mirage | March 21 | November 12 | 235 |
| Elsinore | January 28 | December 18 | 329 |
| Escondido #2 | January 2 | December 30 | 365 |
| Eureka Wfo Woodley Island | February 22 | December 7 | 293 |
| Fairfield | January 15 | December 14 | 336 |
| Fairmont | April 6 | November 29 | 236 |
| Fallbrook 5 Ne | February 2 | January 30 | 365 |
| Five Points 5 Ssw | February 27 | November 26 | 271 |
| Fremont | January 7 | December 22 | 353 |
| Fresno 5 Ne | January 30 | December 11 | 319 |
| Fresno Yosemite Intl Airport | January 14 | December 14 | 337 |
| Friant Government Camp | March 9 | December 1 | 262 |
| Ft Bidwell | May 26 | October 1 | 127 |
| Ft Bragg 5 N | March 2 | December 1 | 272 |
| Ft Ross | February 26 | December 27 | 310 |
| Georgetown Rs | April 12 | November 21 | 221 |
| Gibraltar Dam #2 | March 20 | November 27 | 250 |
| Gilroy | February 24 | November 27 | 277 |
| Glennville | May 11 | October 17 | 155 |
| Grant Grove | June 1 | October 7 | 132 |
| Grass Valley #2 | April 10 | November 13 | 215 |
| Graton | March 20 | November 13 | 240 |
| Grizzly Creek Sp | March 4 | November 22 | 264 |
| Groveland 2 | April 22 | November 2 | 192 |
| Haiwee | April 17 | November 1 | 196 |
| Half Moon Bay | February 6 | December 17 | 328 |
| Hanford 1 S | February 7 | December 1 | 296 |
| Hanford Muni Airport | February 20 | November 23 | 276 |
| Hat Creek | May 29 | September 19 | 113 |
| Hayfield Pumping Plt | February 20 | November 30 | 283 |
| Hayward Air Terminal | January 2 | December 25 | 365 |
| Healdsburg | February 15 | December 2 | 292 |
| Hearst Castle | February 13 | February 1 | 365 |
| Hemet | January 10 | December 23 | 350 |
| Henshaw Dam | April 18 | October 26 | 189 |
| Hesperia 2E | February 28 | December 1 | 270 |
| Hetch Hetchy | April 16 | November 12 | 208 |
| Hollister 2 | February 19 | December 1 | 287 |
| Huntington Lake | June 1 | October 6 | 129 |
| Idyllwild Fire Dept | May 16 | October 24 | 160 |
| Imperial | January 4 | December 26 | 360 |
| Imperial Co Airport | January 14 | December 24 | 346 |
| Independence | March 31 | November 9 | 224 |
| Indio Fire Stn | December 31 | December 27 | 365 |
| Inyokern | March 9 | November 20 | 250 |
| Iron Mtn | January 3 | December 31 | 365 |
| Jess Valley | June 14 | September 18 | 94 |
| Johnson Valley | March 1 | November 29 | 271 |
| Joshua Tree | February 28 | December 1 | 273 |
| Julian Cdf | March 27 | December 1 | 248 |
| Kentfield | January 16 | December 18 | 334 |
| Kern River Ph 3 | April 7 | November 11 | 217 |
| Kettleman City | February 19 | November 29 | 281 |
| King City | February 23 | November 22 | 271 |
| Klamath | March 16 | November 20 | 252 |
| Laguna Beach | January 6 | January 2 | 365 |
| Lake Arrowhead | May 5 | November 2 | 176 |
| Lake Solano | February 4 | December 5 | 304 |
| Lake Spaulding | May 22 | October 16 | 147 |
| Lancaster Wm J Fox Fld | April 3 | November 1 | 211 |
| Lava Beds Nat Mon | June 6 | September 28 | 113 |
| Lee Vining | May 23 | October 9 | 139 |
| Lemon Cove | February 5 | December 8 | 307 |
| Lemoore Reeves Nas | February 24 | November 22 | 265 |
| Lindsay | February 20 | November 30 | 284 |
| Livermore | February 15 | December 2 | 292 |
| Livermore Muni Airport | February 27 | December 1 | 278 |
| Lodgepole | June 8 | September 20 | 100 |
| Lodi | February 9 | December 5 | 301 |
| Lompoc | January 20 | December 19 | 335 |
| Loraine 5 Nne | April 22 | November 13 | 201 |
| Los Banos | January 26 | December 10 | 322 |
| Los Banos Det Resv | January 13 | December 14 | 338 |
| Los Gatos | February 2 | December 6 | 310 |
| Madera | February 18 | November 27 | 281 |
| Madera Muni Airport | February 12 | November 30 | 293 |
| Mammoth Lakes Rs | June 10 | September 17 | 98 |
| Manzanita Lake | June 9 | September 21 | 102 |
| Markley Cove | March 6 | November 30 | 266 |
| Martinez Wtp | February 28 | November 22 | 266 |
| Marysville | January 15 | December 12 | 333 |
| Marysville Yuba Co Airport | February 11 | November 30 | 289 |
| Mccloud | May 28 | September 30 | 123 |
| Mecca Fire Stn | January 6 | December 22 | 352 |
| Merced | March 3 | November 24 | 263 |
| Merced 23 Wsw | March 28 | November 14 | 233 |
| Merced Muni Airport | February 26 | November 25 | 273 |
| Mineral | June 10 | September 13 | 96 |
| Mitchell Caverns | March 6 | December 8 | 272 |
| Modesto City Co Airport | January 31 | December 5 | 312 |
| Moffett Federal Airfield | January 6 | December 23 | 353 |
| Mojave | March 15 | November 17 | 241 |
| Montague Siskiyou Co Airport | May 12 | October 8 | 148 |
| Monterey | January 1 | December 30 | 365 |
| Monterey Peninsul Airport | January 2 | December 23 | 363 |
| Monterey Wfo | January 3 | December 28 | 365 |
| Morongo Valley N | February 25 | December 15 | 297 |
| Morro Bay Fire Dept | January 19 | January 14 | 365 |
| Mt Diablo Junction | March 8 | December 22 | 282 |
| Mt Hamilton | May 3 | November 18 | 197 |
| Mt Laguna #3 | April 22 | November 8 | 197 |
| Mt Shasta | May 6 | October 12 | 158 |
| Mt Shasta | May 15 | October 6 | 143 |
| Mt Wilson Cbs | April 28 | November 15 | 199 |
| N Fk Rs | April 24 | November 4 | 192 |
| Napa Co Airport | March 5 | November 21 | 256 |
| Napa State Hospital | February 12 | December 4 | 299 |
| Needles Airport | January 6 | January 2 | 365 |
| Nevada City | April 14 | November 20 | 218 |
| New Cuyama Fire Stn | April 15 | November 4 | 201 |
| New Melones Dam Hq | February 20 | December 11 | 290 |
| Newark | January 1 | December 27 | 365 |
| Newhall 5Nw | January 8 | January 1 | 365 |
| Newman | February 26 | November 29 | 273 |
| Northridge Cal State | January 2 | January 1 | 365 |
| Oakland Metro Intl Airport | January 7 | December 23 | 356 |
| Occidental | January 29 | December 30 | 347 |
| Oceanside Muni Airport | January 23 | December 11 | 325 |
| Ocotillo Wells 2W | January 7 | January 4 | 365 |
| Ojai | March 21 | November 15 | 235 |
| Ontario Intl Airport | January 4 | December 30 | 365 |
| Orick Prairie Creek Park | April 12 | November 6 | 209 |
| Orland | February 25 | December 2 | 279 |
| Orleans | March 12 | November 26 | 262 |
| Oroville | January 30 | December 13 | 321 |
| Oroville Muni Airport | January 29 | December 7 | 317 |
| Pacific House | April 26 | November 2 | 191 |
| Pacifica 4 Sse | January 11 | January 10 | 365 |
| Paicines 4 W | April 14 | November 2 | 201 |
| Palm Springs | January 1 | December 31 | 365 |
| Palm Springs Rgnl Airport | January 9 | January 9 | 365 |
| Palmdale | March 10 | November 19 | 248 |
| Palmdale Airport | March 18 | November 15 | 241 |
| Palo Alto | February 1 | December 7 | 310 |
| Palomar Mtn Obsy | April 29 | November 18 | 201 |
| Paradise | February 7 | December 18 | 313 |
| Parker Resrvoir | January 7 | December 31 | 365 |
| Pasadena | January 8 | January 7 | 365 |
| Paso Robles | March 15 | November 10 | 238 |
| Paso Robles Muni Airport | April 4 | November 5 | 213 |
| Pearblossom | March 13 | December 1 | 258 |
| Petaluma Airport | February 28 | November 25 | 271 |
| Pinnacles Nm | April 23 | November 3 | 189 |
| Pismo Beach | February 1 | January 4 | 362 |
| Placerville | March 31 | November 21 | 237 |
| Point Mugu Nf | December 29 | December 24 | 365 |
| Pomona/Fairplex | January 8 | December 28 | 354 |
| Porterville | January 20 | December 13 | 330 |
| Portola | June 11 | September 10 | 91 |
| Potter Valley Powerhouse | April 8 | November 6 | 211 |
| Priest Valley | May 8 | October 22 | 165 |
| Quincy | May 22 | September 25 | 122 |
| Ramona Airport | March 19 | November 23 | 248 |
| Ramona Fire Dept | March 4 | December 4 | 270 |
| Rancho Bernardo | January 5 | January 2 | 365 |
| Randsburg | March 19 | November 25 | 251 |
| Red Bluff Muni Airport | February 22 | November 29 | 281 |
| Redding 12 Wnw | March 19 | November 22 | 250 |
| Redding Muni Airport | March 3 | November 21 | 261 |
| Redlands | January 27 | December 19 | 329 |
| Redwood City | January 17 | December 12 | 333 |
| Richardson Gr Sp | March 10 | December 1 | 271 |
| Richmond | January 4 | January 2 | 365 |
| Riverside Citrus Exp | January 10 | January 2 | 365 |
| Riverside Fire Stn 3 | January 9 | December 25 | 353 |
| Riverside Muni Airport | January 9 | December 30 | 362 |
| S Lake Fs | April 5 | November 3 | 212 |
| Sacramento 5 Ese | January 12 | December 16 | 341 |
| Sacramento Executive Airport | February 2 | December 2 | 301 |
| Sacramento Metro Airport | February 22 | November 24 | 277 |
| Saint Helena | February 3 | December 4 | 306 |
| Salinas #2 | February 4 | December 6 | 311 |
| Salinas Municipal Airport | January 29 | December 10 | 325 |
| San Diego Brown Fld | January 6 | December 31 | 365 |
| San Francisco Intl Airport | December 29 | December 26 | 365 |
| San Francisco Oceanside | December 30 | December 25 | 365 |
| San Gabriel Fire Dept | January 4 | January 2 | 365 |
| San Gregorio 2 Se | March 2 | November 25 | 268 |
| San Jacinto | January 31 | December 10 | 315 |
| San Jose | January 2 | December 25 | 362 |
| San Jose | January 12 | December 22 | 347 |
| San Luis Dam | January 27 | December 11 | 323 |
| San Luis Obispo Airport | January 31 | December 11 | 319 |
| San Luis Obispo Poly | January 16 | December 25 | 349 |
| San Pasqual Animal Pk | February 2 | December 7 | 309 |
| San Rafael Civic Ctr | January 11 | December 21 | 349 |
| Sandberg | April 15 | November 26 | 224 |
| Santa Barbara | January 13 | January 6 | 365 |
| Santa Barbara 11 W | December 31 | December 20 | 365 |
| Santa Barbara Muni Airport | January 11 | December 16 | 342 |
| Santa Cruz | January 29 | December 13 | 323 |
| Santa Maria Public Airport | February 4 | December 13 | 315 |
| Santa Rosa | February 25 | December 1 | 279 |
| Santa Rosa Sonoma Co Airport | March 2 | November 20 | 262 |
| Scotia | February 1 | December 19 | 328 |
| Shafter 6E | February 20 | November 23 | 276 |
| Shasta Dam | February 8 | December 28 | 322 |
| Skyline Ridge Preserve | March 21 | December 15 | 275 |
| So Entrance Yosemite Np | May 24 | October 10 | 137 |
| Sonoma | March 2 | November 27 | 270 |
| Sonora | April 9 | November 9 | 213 |
| Stockton Fire Stn 4 | February 5 | December 8 | 305 |
| Stockton Metro Airport | February 6 | December 1 | 304 |
| Stony Gorge Rsvr | April 5 | November 13 | 220 |
| Stovepipe Wells 1 Sw | January 4 | December 22 | 352 |
| Strawberry Valley | May 4 | October 30 | 174 |
| Susanville 2Sw | May 16 | October 8 | 143 |
| Sutter Hill Cdf | March 4 | December 11 | 285 |
| Taft | January 24 | December 17 | 330 |
| Tahoe City | June 9 | September 25 | 108 |
| Tahoma | June 4 | October 3 | 120 |
| Tehachapi 4 Se | April 28 | October 26 | 183 |
| Three Rivers Edison Ph 1 | March 16 | November 26 | 249 |
| Torrance Airport | January 9 | January 5 | 365 |
| Tracy Carbona | February 25 | November 26 | 272 |
| Tracy Pumping Plt | January 19 | December 10 | 330 |
| Trinity Rvr Hatchery | April 23 | October 22 | 178 |
| Trona | February 15 | November 28 | 285 |
| Tulelake | June 6 | September 14 | 97 |
| Turlock #2 | January 6 | December 20 | 351 |
| Tustin Irvine Rch | January 5 | December 25 | 365 |
| Twentynine Palms | January 24 | December 10 | 321 |
| Twitchell Dam | February 4 | December 4 | 301 |
| Ukiah | March 19 | November 20 | 245 |
| Ukiah Muni Airport | March 5 | November 21 | 259 |
| Vacaville | January 31 | December 11 | 318 |
| Vacaville Nut Tree Airport | February 18 | November 28 | 283 |
| Vallejo | January 17 | December 27 | 346 |
| Valley Ctr 1N | February 19 | December 1 | 281 |
| Van Nuys Airport | December 31 | December 30 | 365 |
| Verdi 2W | May 9 | October 17 | 156 |
| Victorville | March 18 | November 11 | 233 |
| Visalia | January 23 | December 13 | 328 |
| Vista | January 30 | January 7 | 365 |
| Wasco | January 31 | December 5 | 315 |
| Watsonville Muni Airport | January 31 | December 9 | 317 |
| Watsonville Wtr Wks | January 28 | December 13 | 324 |
| Weaverville | May 3 | October 11 | 159 |
| Whiskeytown Rsvr | February 13 | December 13 | 304 |
| Willits 1 Ne | May 5 | October 9 | 157 |
| Willows 6 W | February 21 | December 6 | 289 |
| Winters | February 18 | November 30 | 284 |
| Woodland 1 Wnw | February 7 | December 5 | 301 |
| Woodland Hills Pierce College | January 24 | December 15 | 329 |
| Woodside Fire Stn 1 | February 25 | November 25 | 274 |
| Wrightwood | May 16 | October 13 | 151 |
| Yosemite Park Hq | April 21 | October 27 | 186 |
| Yosemite Village 12 W | May 12 | November 1 | 171 |
| Yreka | April 30 | October 18 | 169 |
| Yucca Mesa | February 16 | December 10 | 296 |
| Yucca Valley | March 14 | November 28 | 255 |
Sources
- U.S. Annual/Seasonal Climate Normals, 1991 to 2020 (freeze probability dates by station), NOAA National Centers for Environmental Information, checked 1 November 2026
- Annual/Seasonal Normals 1991 to 2020 documentation, NOAA National Centers for Environmental Information, checked 1 November 2026
- 2024 Gazetteer Files, ZIP Code Tabulation Areas, US Census Bureau, checked 1 November 2026