California Frost Dates

The median last spring freeze and first fall freeze (32°F) at 364 NOAA stations in California, 1991-2020, with the growing season between them.

Every station

A median date has an even chance of a later freeze in spring or an earlier one in fall. Each town page gives the dates at 36, 32 and 28°F and every probability from 10 to 90 percent.

Station	Elevation	Last freeze	First freeze	Season, days	Town page
Adin RS	4,195 ft	May 28	September 29	124	California Pines
Alpine	1,695 ft	February 12	December 24	316	Alpine
Alturas	4,378 ft	June 3	September 13	102	Alturas
Alturas Muni AP	4,375 ft	June 3	September 12	101	Alturas
Anaheim	235 ft	Rare	Rare		Placentia
Angwin Pacific Union College	1,715 ft	April 7	December 5	242	Angwin
Antioch Pumping Plt #3	60 ft	January 12	December 19	342	Oakley
Arcata Eureka AP	200 ft	March 8	November 30	267	McKinleyville
Ash Mtn	1,708 ft	March 12	December 9	272	Three Rivers
Auberry 2 Nw	2,090 ft	March 25	December 3	253	Auberry
Auburn	1,292 ft	February 25	December 5	284	Auburn
Avalon Catalina AP	1,602 ft	Rare	Rare		Avalon
Baker	962 ft	February 14	November 27	287	Baker
Bakersfield 5 Nw	470 ft	January 31	December 8	312	Oildale
Bakersfield AP	489 ft	January 17	December 15	333	Oildale
Balch Pwr House	1,735 ft	February 23	December 12	293	Yokuts Valley
Barstow	2,220 ft	February 22	November 23	275	Barstow
Barstow Daggett AP	1,917 ft	February 19	November 26	281	Yermo
Ben Lomond #4	420 ft	March 25	November 11	231	Ben Lomond
Berkeley	310 ft	Rare	Rare		Berkeley
Big Bar 4 E	1,253 ft	April 16	October 31	198	Junction City
Big Bear Lake	6,753 ft	May 27	October 4	130	Big Bear Lake
Big Sur Stn	200 ft	February 13	December 27	318	Big Sur
Bishop AP	4,102 ft	April 29	October 15	169	Bishop
Blue Canyon AP	5,276 ft	May 4	November 4	184	Alta
Blythe	268 ft	January 25	December 12	322	Blythe
Blythe AP	395 ft	January 5	December 21	351	Mesa Verde
Bodega 6 Wsw	63 ft	Rare	Rare		Bodega Bay
Borrego Desert Park	810 ft	Rare	Rare		Borrego Springs
Bowman Dam	5,385 ft	May 12	October 29	170	Downieville
Brawley 2 Sw	-100 ft	January 16	December 19	338	Brawley
Burbank Glendale Pasadena AP	741 ft	Rare	Rare		North Hollywood
Burbank Valley Pump Plt	655 ft	January 2	December 26	359	North Hollywood
Burney	3,198 ft	June 3	September 14	103	Burney
Buttonwillow	225 ft	February 9	November 26	291	Buttonwillow
Cachuma Lake	789 ft	April 11	November 8	211	Santa Ynez
Calaveras Big Trees	4,695 ft	May 7	October 28	174	Dorrington
Calistoga	400 ft	March 2	November 23	266	Calistoga
Callahan	3,085 ft	May 20	October 5	138	Etna
Camarillo AP	77 ft	Rare	Rare		Camarillo
Camp Pardee	658 ft	January 22	December 17	330	Valley Springs
Camp Pendleton Mcas	75 ft	February 16	December 8	296	Camp Pendleton North
Campo	2,630 ft	April 30	October 26	179	Campo
Campo Asos	2,641 ft	April 29	November 1	186	Campo
Canby 3 Sw	4,310 ft	June 1	September 16	107	California Pines
Canyon Dam	4,560 ft	May 18	October 8	143	Hamilton Branch
Carlsbad Palomar AP	328 ft	Rare	Rare		Lake San Marcos
Carmel Valley	480 ft	February 20	December 8	292	Carmel Valley Village
Cecilville	2,310 ft	April 27	October 21	177	Etna
Cedarville	4,688 ft	May 15	October 1	139	Cedarville
Cherry Valley Dam	4,765 ft	May 2	November 4	186	Mi-Wuk Village
Chester	4,530 ft	May 28	September 28	123	Chester
Chico Univ Farm	185 ft	March 4	November 17	258	Chico
China Lake Naf	2,230 ft	March 11	November 12	246	Ridgecrest
Chino AP	650 ft	January 17	December 19	337	Chino
Chiriaco Summit	1,706 ft	February 5	December 17	316	Mecca
Chula Vista	56 ft	Rare	Rare		Chula Vista
Clearlake 4 Se	1,349 ft	April 10	November 6	210	Lower Lake
Cloverdale	400 ft	February 25	December 3	282	Cloverdale
Coalinga	670 ft	February 14	November 30	290	Coalinga
Colfax	2,380 ft	April 3	November 24	235	Colfax
Colusa 2 Ssw	50 ft	February 14	December 1	291	Colusa
Concord Buchanan Fld	18 ft	January 9	December 14	340	Pacheco
Concord Wwtp	40 ft	January 7	December 19	347	Pacheco
Copco #1 Dam	2,703 ft	May 4	October 21	170	Montague
Corcoran Irrig Dist	200 ft	February 15	November 27	286	Corcoran
Covelo	1,413 ft	April 23	October 19	179	Covelo
Crescent City 3 Nnw	43 ft	March 11	November 23	257	Crescent City
Crescent City Mcnamara AP	56 ft	January 30	December 25	330	Crescent City
Culver City	92 ft	Rare	Rare		Culver City
Cuyamaca	4,640 ft	April 19	October 27	191	Julian
Davis 2 Wsw Exp Farm	60 ft	February 10	December 1	295	Davis
De Sabla	2,710 ft	April 17	November 11	208	Forest Ranch
Death Valley Np	-194 ft	January 1	December 19	353	Death Valley
Delano	302 ft	January 31	December 8	312	Delano
Desert Resorts Rgnl AP	-118 ft	February 7	December 2	299	Thermal
Dobbins 1 S	1,640 ft	April 1	November 17	230	Dobbins
Downieville	2,915 ft	April 28	October 25	180	Downieville
Doyle 4 Sse	4,390 ft	May 21	October 1	133	Doyle
Dunsmuir Trtmt Pl	2,169 ft	April 23	October 27	187	Dunsmuir
Eagle Mtn	973 ft	Rare	Rare		Niland
East Park Rsvr	1,205 ft	April 6	November 10	218	Maxwell
El Cajon	495 ft	January 6	December 21	350	Bostonia
El Capitan Dam	600 ft	March 19	December 8	264	Alpine
El Centro 2 Ssw	-30 ft	January 3	December 27	359	El Centro
El Centro Naf	-42 ft	January 6	December 21	350	Seeley
El Mirage	2,950 ft	March 21	November 12	236	Piñon Hills
Elsinore	1,268 ft	January 28	December 18	325	Lake Elsinore
Escondido #2	600 ft	Rare	Rare		Escondido
Eureka WFO Woodley Island	20 ft	February 22	December 7	289	Eureka
Fairfield	40 ft	January 15	December 14	334	Fairfield
Fairmont	3,060 ft	April 6	November 29	237	Lake Hughes
Fallbrook 5 Ne	1,140 ft	Rare	Rare		Rainbow
Five Points 5 Ssw	285 ft	February 27	November 26	273	Huron
Fremont	38 ft	January 7	December 22	350	Fremont
Fresno 5 Ne	338 ft	January 30	December 11	316	Tarpey Village
Fresno Yosemite Intl AP	333 ft	January 14	December 14	335	Tarpey Village
Friant Government Camp	410 ft	March 9	December 1	267	Friant
Ft Bidwell	4,739 ft	May 26	October 1	128	Cedarville
Ft Bragg 5 N	123 ft	March 2	December 1	274	Cleone
Ft Ross	112 ft	February 26	December 27	305	Monte Rio
Fullerton Muni AP	96 ft	Rare	Rare		Buena Park
Georgetown RS	3,001 ft	April 12	November 21	223	Georgetown
Getty Ctr	1,117 ft	Rare	Rare		Bel Air
Gibraltar Dam #2	1,558 ft	March 20	November 27	252	Mission Canyon
Gilroy	194 ft	February 24	November 27	277	Gilroy
Glennville	3,140 ft	May 11	October 17	159	Alta Sierra
Grant Grove	6,580 ft	June 1	October 7	128	Yokuts Valley
Grass Valley #2	2,400 ft	April 10	November 13	217	Grass Valley
Graton	200 ft	March 20	November 13	238	Graton
Grizzly Creek SP	413 ft	March 4	November 22	263	Scotia
Groveland 2	2,800 ft	April 22	November 2	194	Groveland
Haiwee	3,825 ft	April 17	November 1	198	Lone Pine
Half Moon Bay	27 ft	February 6	December 17	315	Half Moon Bay
Hanford 1 S	237 ft	February 7	December 1	298	Home Garden
Hanford Muni AP	249 ft	February 20	November 23	277	Hanford
Hat Creek	3,015 ft	May 29	September 19	113	Burney
Hawthorne Muni AP	63 ft	Rare	Rare		Hawthorne
Hayfield Pumping Plt	1,370 ft	February 20	November 30	284	Mecca
Hayward Air Terminal	43 ft	Rare	Rare		Longwood - Winton Grove
Healdsburg	177 ft	February 15	December 2	291	Healdsburg
Hearst Castle	1,526 ft	Rare	Rare		Cambria
Hemet	1,811 ft	January 10	December 23	348	Valle Vista
Henshaw Dam	2,700 ft	April 18	October 26	191	Julian
Hesperia 2E	3,055 ft	February 28	December 1	277	Hesperia
Hetch Hetchy	3,870 ft	April 16	November 12	210	Yosemite Valley
Hollister 2	275 ft	February 19	December 1	286	Hollister
Huntington Lake	7,020 ft	June 1	October 6	127	Shaver Lake
Idyllwild Fire Dept	5,380 ft	May 16	October 24	161	Idyllwild
Imperial	-64 ft	January 4	December 26	357	Imperial
Imperial Beach Ream Fld Nas	24 ft	Rare	Rare		Imperial Beach
Imperial CO AP	-58 ft	January 14	December 24	345	Imperial
Independence	3,950 ft	March 31	November 9	223	Independence
Indio Fire Stn	-21 ft	Rare	Rare		Indio
Inyokern	2,430 ft	March 9	November 20	256	Inyokern
Iron Mtn	922 ft	Rare	Rare		Big River
Irvine Rch	540 ft	Rare	Rare		Stonegate
Jess Valley	5,400 ft	June 14	September 18	96	Cedarville
Johnson Valley	3,167 ft	March 1	November 29	273	Yucca Valley
Joshua Tree	2,563 ft	February 28	December 1	277	Joshua Tree
Julian Cdf	4,215 ft	March 27	December 1	249	Julian
Kentfield	145 ft	January 16	December 18	337	Ross
Kern River Ph 3	2,703 ft	April 7	November 11	218	Kernville
Kettleman City	240 ft	February 19	November 29	284	Kettleman City
King City	320 ft	February 23	November 22	273	King City
Klamath	28 ft	March 16	November 20	249	Klamath
Laguna Beach	44 ft	Rare	Rare		Laguna Beach
Lake Arrowhead	5,205 ft	May 5	November 2	181	Lake Arrowhead
Lake Solano	187 ft	February 4	December 5	305	Winters
Lake Spaulding	5,156 ft	May 22	October 16	147	Alta
Lancaster Wm J Fox Fld	2,338 ft	April 3	November 1	212	Lancaster
Lava Beds Nat Mon	4,770 ft	June 6	September 28	114	Tulelake
Lee Vining	6,797 ft	May 23	October 9	139	June Lake
Lemon Cove	513 ft	February 5	December 8	307	Woodlake
Lemoore Reeves Nas	232 ft	February 24	November 22	272	Lemoore Station
Lindsay	435 ft	February 20	November 30	284	Lindsay
Livermore	393 ft	February 15	December 2	291	Livermore
Livermore Muni AP	393 ft	February 27	December 1	278	Livermore
Lodgepole	6,735 ft	June 8	September 20	104	Three Rivers
Lodi	40 ft	February 9	December 5	300	Lodi
Lompoc	75 ft	January 20	December 19	334	Lompoc
Long Beach Daugherty Fld	31 ft	Rare	Rare		Signal Hill
Loraine 5 Nne	4,235 ft	April 22	November 13	205	Bodfish
Los Angeles Dwtn Usc Campus	230 ft	Rare	Rare		Los Angeles
Los Angeles Intl AP	97 ft	Rare	Rare		Del Aire
Los Banos	120 ft	January 26	December 10	319	Los Banos
Los Banos Det Resv	407 ft	January 13	December 14	336	Los Banos
Los Gatos	365 ft	February 2	December 6	308	Los Gatos
Madera	270 ft	February 18	November 27	283	Parksdale
Madera Muni AP	253 ft	February 12	November 30	292	Madera Acres
Mammoth Lakes RS	7,805 ft	June 10	September 17	99	Mammoth Lakes
Manzanita Lake	5,750 ft	June 9	September 21	104	Shingletown
Markley Cove	480 ft	March 6	November 30	269	Winters
Martinez Wtp	40 ft	February 28	November 22	268	Mountain View
Marysville	57 ft	January 15	December 12	332	Marysville
Marysville Yuba CO AP	62 ft	February 11	November 30	293	Olivehurst
Mccloud	3,233 ft	May 28	September 30	125	McCloud
Mecca Fire Stn	-183 ft	January 6	December 22	351	Mecca
Merced	154 ft	March 3	November 24	266	Merced
Merced 23 Wsw	78 ft	March 28	November 14	231	Gustine
Merced Muni AP	152 ft	February 26	November 25	273	Merced
Mineral	4,875 ft	June 10	September 13	95	Shingletown
Mitchell Caverns	4,350 ft	March 6	December 8	277	Baker
Modesto City CO AP	73 ft	January 31	December 5	309	Bystrom
Moffett Federal Airfield	39 ft	January 6	December 23	352	Mountain View
Mojave	2,735 ft	March 15	November 17	247	Mojave
Montague Siskiyou CO AP	2,635 ft	May 12	October 8	149	Montague
Monterey	260 ft	Rare	Rare		Monterey
Monterey Peninsul AP	165 ft	January 2	December 23	356	Del Rey Oaks
Monterey WFO	122 ft	Rare	Rare		Del Rey Oaks
Morongo Valley N	3,145 ft	February 25	December 15	294	Morongo Valley
Morro Bay Fire Dept	118 ft	Rare	Rare		Morro Bay
Mt Diablo Junction	2,170 ft	March 8	December 22	289	Diablo
Mt Hamilton	4,206 ft	May 3	November 18	199	East Foothills
Mt Laguna #3	5,920 ft	April 22	November 8	200	Pine Valley
Mt Shasta	3,613 ft	May 15	October 6	144	Mount Shasta
Mt Shasta	3,535 ft	May 6	October 12	159	Mount Shasta
Mt Wilson Cbs	5,710 ft	April 28	November 15	201	Altadena
N Fk RS	2,645 ft	April 24	November 4	194	Bass Lake
Napa CO AP	14 ft	March 5	November 21	261	American Canyon
Napa State Hospital	35 ft	February 12	December 4	296	Napa
Needles AP	890 ft	Rare	Rare		Needles
Nevada City	2,781 ft	April 14	November 20	220	Nevada City
New Cuyama Fire Stn	2,160 ft	April 15	November 4	203	New Cuyama
New Melones Dam Hq	960 ft	February 20	December 11	295	Tuttletown
Newark	10 ft	Rare	Rare		Newark
Newhall 5NW	1,765 ft	Rare	Rare		Stevenson Ranch
Newman	90 ft	February 26	November 29	277	Gustine
Newport Beach Harbor	10 ft	Rare	Rare		San Joaquin Hills
North Island Nas	26 ft	Rare	Rare		Coronado
Northridge Cal State	904 ft	Rare	Rare		Northridge
Oakland Metro Intl AP	6 ft	January 7	December 23	351	San Leandro
Oakland Museum	30 ft	Rare	Rare		Chinatown
Occidental	865 ft	January 29	December 30	336	Occidental
Oceanside Marina	10 ft	Rare	Rare		Oceanside
Oceanside Muni AP	28 ft	January 23	December 11	323	Camp Pendleton South
Ocotillo Wells 2W	390 ft	Rare	Rare		Borrego Springs
Ojai	745 ft	March 21	November 15	239	Ojai
Ontario Intl AP	949 ft	Rare	Rare		Ontario
Orick Prairie Creek Park	160 ft	April 12	November 6	208	Klamath
Orland	254 ft	February 25	December 2	281	Orland
Orleans	403 ft	March 12	November 26	259	Willow Creek
Oroville	171 ft	January 30	December 13	318	Oroville
Oroville Muni AP	190 ft	January 29	December 7	313	Thermalito
Oxnard	49 ft	Rare	Rare		Oxnard
Oxnard Ventura CO AP	36 ft	Rare	Rare		Oxnard
Oxnard WFO	52 ft	Rare	Rare		Oxnard
Pacific House	3,450 ft	April 26	November 2	190	Pollock Pines
Pacifica 4 Sse	475 ft	Rare	Rare		Pacifica
Paicines 4 W	905 ft	April 14	November 2	202	Ridgemark
Palm Springs	425 ft	Rare	Rare		Palm Springs
Palm Springs Rgnl AP	421 ft	Rare	Rare		Palm Springs
Palmdale	2,612 ft	March 10	November 19	254	Palmdale
Palmdale AP	2,524 ft	March 18	November 15	242	Palmdale
Palo Alto	25 ft	February 1	December 7	310	Palo Alto
Palomar Mtn Obsy	5,550 ft	April 29	November 18	203	Aguanga
Paradise	1,750 ft	February 7	December 18	315	Paradise
Parker Resrvoir	738 ft	January 7	December 31	359
Pasadena	864 ft	Rare	Rare		Pasadena
Paso Robles	730 ft	March 15	November 10	240	Paso Robles
Paso Robles Muni AP	810 ft	April 4	November 5	215	Paso Robles
Pearblossom	3,101 ft	March 13	December 1	263	Littlerock
Petaluma AP	20 ft	February 28	November 25	271	Petaluma
Pinnacles Nm	1,307 ft	April 23	November 3	194	Soledad
Pismo Beach	39 ft	February 1	January 4	-28	Pismo Beach
Placerville	1,850 ft	March 31	November 21	235	Diamond Springs
Point Mugu Nf	13 ft	Rare	Rare		Port Hueneme
Pomona/fairplex	999 ft	January 8	December 28	355	La Verne
Porterville	393 ft	January 20	December 13	328	Porterville
Portola	4,850 ft	June 11	September 10	91	Portola
Potter Valley Powerhouse	1,018 ft	April 8	November 6	212	Potter Valley
Priest Valley	2,300 ft	May 8	October 22	167	San Ardo
Quincy	3,420 ft	May 22	September 25	126	Quincy
Ramona AP	1,393 ft	March 19	November 23	249	Ramona
Ramona Fire Dept	1,470 ft	March 4	December 4	275	Ramona
Rancho Bernardo	690 ft	Rare	Rare		Rancho Penasquitos
Randsburg	3,570 ft	March 19	November 25	251	Ridgecrest
Red Bluff Muni AP	353 ft	February 22	November 29	281	Red Bluff
Redding 12 Wnw	1,418 ft	March 19	November 22	248	Shasta
Redding Muni AP	497 ft	March 3	November 21	263	Palo Cedro
Redlands	1,410 ft	January 27	December 19	327	Redlands
Redondo Beach	142 ft	Rare	Rare		Redondo Beach
Redwood City	31 ft	January 17	December 12	330	Redwood City
Richardson Gr SP	503 ft	March 10	December 1	266	Garberville
Richmond	20 ft	Rare	Rare		Richmond
Riverside Citrus Exp	986 ft	Rare	Rare		Riverside
Riverside Fire Stn 3	840 ft	January 9	December 25	351	Riverside
Riverside Muni AP	805 ft	January 9	December 30	356	Riverside
S Lake Fs	2,654 ft	April 5	November 3	212	Mountain Mesa
Sacramento 5 Ese	38 ft	January 12	December 16	339	Fruitridge Pocket
Sacramento Executive AP	15 ft	February 2	December 2	304	Parkway
Sacramento Metro AP	23 ft	February 22	November 24	276	Elverta
Saint Helena	225 ft	February 3	December 4	305	Saint Helena
Salinas #2	45 ft	February 4	December 6	306	Salinas
Salinas Municipal AP	74 ft	January 29	December 10	316	Salinas
San Diego Brown Fld	515 ft	Rare	Rare		Bonita
San Diego Lindbergh Fld	15 ft	Rare	Rare		San Diego
San Diego Miramar Nas	477 ft	Rare	Rare		Mira Mesa
San Diego Montgomery Fld	417 ft	Rare	Rare		Sorrento Valley
San Diego Seaworld	14 ft	Rare	Rare		San Diego
San Francisco Dwtn	150 ft	Rare	Rare		San Francisco
San Francisco Intl AP	8 ft	Rare	Rare		Millbrae
San Francisco Oceanside	8 ft	Rare	Rare		Parkside
San Gabriel Fire Dept	363 ft	Rare	Rare		San Gabriel
San Gregorio 2 Se	275 ft	March 2	November 25	268	Pescadero
San Jacinto	1,525 ft	January 31	December 10	314	San Jacinto
San Jose	67 ft	January 2	December 25	358	San Jose
San Jose	51 ft	January 12	December 22	345	Santa Clara
San Luis Dam	277 ft	January 27	December 11	319	Los Banos
San Luis Obispo AP	200 ft	January 31	December 11	315	San Luis Obispo
San Luis Obispo Poly	308 ft	January 16	December 25	344	San Luis Obispo
San Pasqual Animal Pk	420 ft	February 2	December 7	309	San Pasqual
San Rafael Civic Ctr	120 ft	January 11	December 21	345	Santa Venetia
Sandberg	4,510 ft	April 15	November 26	225	Lebec
Santa Ana Fire Stn	135 ft	Rare	Rare		Santa Ana
Santa Ana John Wayne AP	54 ft	Rare	Rare		Irvine
Santa Barbara	16 ft	Rare	Rare		Santa Barbara
Santa Barbara 11 W	18 ft	Rare	Rare		Isla Vista
Santa Barbara Muni AP	9 ft	January 11	December 16	340	Goleta
Santa Cruz	70 ft	January 29	December 13	319	Live Oak
Santa Maria Public AP	242 ft	February 4	December 13	313	Orcutt
Santa Monica Muni AP	174 ft	Rare	Rare		Sawtelle
Santa Monica Pier	14 ft	Rare	Rare		Santa Monica
Santa Rosa	166 ft	February 25	December 1	280	Santa Rosa
Santa Rosa Sonoma CO AP	114 ft	March 2	November 20	263	Fulton
Scotia	136 ft	February 1	December 19	322	Scotia
Shafter 6E	404 ft	February 20	November 23	277	Rosedale
Shasta Dam	1,075 ft	February 8	December 28	324	Central Valley (historical)
Shelter Cove Aviation	246 ft	Rare	Rare		Shelter Cove
Skyline Ridge Preserve	2,270 ft	March 21	December 15	269	La Honda
So Entrance Yosemite Np	5,047 ft	May 24	October 10	139	Ahwahnee
Sonoma	97 ft	March 2	November 27	270	Sonoma
Sonora	1,675 ft	April 9	November 9	214	Sonora
Stockton Fire Stn 4	12 ft	February 5	December 8	307	Lincoln Village
Stockton Metro AP	26 ft	February 6	December 1	299	French Camp
Stony Gorge Rsvr	800 ft	April 5	November 13	222	Willows
Stovepipe Wells 1 Sw	84 ft	January 4	December 22	353
Strawberry Valley	3,808 ft	May 4	October 30	179	Challenge-Brownsville
Susanville 2SW	4,212 ft	May 16	October 8	145	Susanville
Sutter Hill Cdf	1,586 ft	March 4	December 11	282	Sutter Creek
Taft	773 ft	January 24	December 17	328	Ford City
Tahoe City	6,230 ft	June 9	September 25	108	Sunnyside-Tahoe City
Tahoma	6,315 ft	June 4	October 3	121	Tahoma
Tehachapi 4 Se	4,220 ft	April 28	October 26	181	Tehachapi
Three Rivers Edison Ph 1	1,140 ft	March 16	November 26	255	Three Rivers
Torrance AP	90 ft	Rare	Rare		Rolling Hills Estates
Tracy Carbona	135 ft	February 25	November 26	275	Tracy
Tracy Pumping Plt	61 ft	January 19	December 10	326	Mountain House
Trinity Rvr Hatchery	1,861 ft	April 23	October 22	182	Lewiston
Trona	1,695 ft	February 15	November 28	287	Searles Valley
Tulelake	4,038 ft	June 6	September 14	100	Tulelake
Turlock #2	103 ft	January 6	December 20	349	Turlock
Tustin Irvine Rch	235 ft	January 5	December 25	355	Stonegate
Twentynine Palms	1,975 ft	January 24	December 10	321	Twentynine Palms
Twitchell Dam	582 ft	February 4	December 4	304	Santa Maria
U C L A	430 ft	Rare	Rare		Bel Air
Ukiah	636 ft	March 19	November 20	246	Ukiah
Ukiah Muni AP	601 ft	March 5	November 21	261	Ukiah
Vacaville	110 ft	January 31	December 11	315	Hartley
Vacaville Nut Tree AP	109 ft	February 18	November 28	284	Vacaville
Vallejo	341 ft	January 17	December 27	345	Crockett
Valley Ctr 1N	1,290 ft	February 19	December 1	286	Valley Center
Van Nuys AP	770 ft	Rare	Rare		North Hills
Verdi 2W	5,429 ft	May 9	October 17	161
Victorville	2,880 ft	March 18	November 11	238	Victorville
Visalia	303 ft	January 23	December 13	325	Visalia
Vista	430 ft	Rare	Rare		Vista
Wasco	291 ft	January 31	December 5	309	Wasco
Watsonville Muni AP	160 ft	January 31	December 9	313	Freedom
Watsonville Wtr Wks	95 ft	January 28	December 13	320	Freedom
Weaverville	2,058 ft	May 3	October 11	161	Weaverville
Whiskeytown Rsvr	1,295 ft	February 13	December 13	304	Shasta
Willits 1 Ne	1,353 ft	May 5	October 9	157	Willits
Willows 6 W	234 ft	February 21	December 6	289	Willows
Winters	135 ft	February 18	November 30	286	Winters
Woodland 1 Wnw	67 ft	February 7	December 5	302	Woodland
Woodland Hills Pierce College	790 ft	January 24	December 15	326	Canoga Park
Woodside Fire Stn 1	380 ft	February 25	November 25	274	Woodside
Wrightwood	6,000 ft	May 16	October 13	150	Wrightwood
Yosemite Park Hq	4,018 ft	April 21	October 27	189	Yosemite Valley
Yosemite Village 12 W	6,620 ft	May 12	November 1	173	Yosemite Valley
Yreka	2,709 ft	April 30	October 18	171	Yreka
Yucca Mesa	3,445 ft	February 16	December 10	298	Yucca Valley
Yucca Valley	3,249 ft	March 14	November 28	259	Yucca Valley

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal freeze probabilities. Public domain.