Frost dates in San Diego County, California
The average last spring frost in San Diego County falls Jan 2 to Apr 30 and the average first fall frost Oct 26 to Jan 30 (next year), depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 10a to 9b. Places: Alpine, Bonita, Bonsall, Borrego Springs, Boulevard, Camp Pendleton Mainside. 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 |
|---|---|---|---|---|
| 91901 | Alpine | Feb 12 | Dec 24 | 9b |
| 91902 | Bonita | Jan 6 | Dec 31 | 10b |
| 91905 | Boulevard | Apr 29 | Nov 1 | 9a |
| 91906 | Campo | Apr 30 | Oct 26 | 9a |
| 91910 | Chula Vista | Jan 6 | Dec 31 | 10b |
| 91911 | Chula Vista | Jan 6 | Dec 31 | 10b |
| 91913 | Chula Vista | Jan 6 | Dec 31 | 10b |
| 91914 | Chula Vista | Jan 6 | Dec 31 | 10b |
| 91915 | Chula Vista | Jan 6 | Dec 31 | 10b |
| 91916 | Descanso | Apr 19 | Oct 27 | 9b |
| 91917 | Feb 12 | Dec 24 | 10a | |
| 91931 | Apr 22 | Nov 8 | 8b | |
| 91932 | Imperial Beach | Jan 6 | Dec 31 | 10b |
| 91934 | Jacumba | Apr 29 | Nov 1 | 9b |
| 91935 | Jamul | Feb 12 | Dec 24 | 10a |
| 91941 | Casa de Oro-Mount Helix | Jan 6 | Dec 21 | 10b |
| 91942 | La Mesa | Jan 6 | Dec 21 | 10b |
| 91945 | Lemon Grove | Jan 6 | Dec 21 | 10b |
| 91948 | Mount Laguna | Apr 22 | Nov 8 | 8a |
| 91950 | National City | Jan 6 | Dec 31 | 10b |
| 91962 | Pine Valley | Apr 22 | Nov 8 | 8b |
| 91963 | Potrero | Apr 30 | Oct 26 | 9a |
| 91977 | La Presa | Jan 6 | Dec 21 | 10b |
| 91978 | Spring Valley | Jan 6 | Dec 21 | 10b |
| 91980 | Apr 30 | Oct 26 | 9b | |
| 92003 | Bonsall | Jan 30 | Jan 7 (next year) | 10a |
| 92004 | Borrego Springs | Jan 7 | Jan 4 (next year) | 10a |
| 92007 | Encinitas | Jan 2 | Dec 30 | 10b |
| 92008 | Carlsbad | Jan 23 | Dec 11 | 10a |
| 92009 | Carlsbad | Jan 2 | Dec 30 | 10a |
| 92010 | Carlsbad | Jan 23 | Dec 11 | 10a |
| 92011 | Carlsbad | Jan 23 | Dec 11 | 10b |
| 92014 | San Diego | Jan 2 | Dec 30 | 10b |
| 92019 | Rancho San Diego | Jan 6 | Dec 21 | 10b |
| 92020 | El Cajon | Jan 6 | Dec 21 | 10a |
| 92021 | Harbison Canyon | Jan 6 | Dec 21 | 10a |
| 92024 | Encinitas | Jan 2 | Dec 30 | 10a |
| 92025 | Escondido | Feb 2 | Dec 7 | 10a |
| 92026 | Escondido | Jan 30 | Jan 7 (next year) | 10a |
| 92027 | Escondido | Feb 2 | Dec 7 | 9b |
| 92028 | Fallbrook | Feb 2 | Jan 30 (next year) | 10a |
| 92029 | Escondido | Jan 2 | Dec 30 | 10a |
| 92036 | Julian | Jan 7 | Jan 4 (next year) | 9b |
| 92037 | San Diego | Jan 6 | Dec 21 | 10b |
| 92040 | Lakeside | Mar 19 | Dec 8 | 10a |
| 92054 | Oceanside | Jan 23 | Dec 11 | 10a |
| 92055 | Feb 16 | Dec 8 | 10b | |
| 92056 | Oceanside | Jan 23 | Dec 11 | 10a |
| 92057 | Oceanside | Jan 30 | Jan 7 (next year) | 10a |
| 92058 | Camp Pendleton Mainside | Feb 16 | Dec 8 | 10a |
| 92059 | Pala | Feb 2 | Jan 30 (next year) | 10a |
| 92060 | Apr 29 | Nov 18 | 9a | |
| 92061 | Apr 29 | Nov 18 | 9b | |
| 92064 | Poway | Mar 4 | Dec 4 | 10a |
| 92065 | Ramona | Mar 4 | Dec 4 | 9b |
| 92066 | Jan 10 | Jan 1 (next year) | 9a | |
| 92067 | Rancho Santa Fe | Jan 2 | Dec 30 | 10a |
| 92069 | San Marcos | Jan 2 | Dec 30 | 10a |
| 92070 | Apr 18 | Oct 26 | 9a | |
| 92071 | Santee | Jan 6 | Dec 21 | 10a |
| 92075 | Solana Beach | Jan 2 | Dec 30 | 10b |
| 92078 | San Marcos | Jan 2 | Dec 30 | 10a |
| 92081 | Vista | Jan 30 | Jan 7 (next year) | 10a |
| 92082 | Valley Center | Feb 19 | Dec 1 | 9b |
| 92083 | Vista | Jan 30 | Jan 7 (next year) | 10a |
| 92084 | Vista | Jan 30 | Jan 7 (next year) | 10a |
| 92086 | Apr 18 | Oct 26 | 8b | |
| 92091 | Jan 2 | Dec 30 | 10a | |
| 92092 | San Diego | Jan 5 | Jan 2 (next year) | 10b |
| 92093 | San Diego | Jan 5 | Jan 2 (next year) | 10b |
| 92096 | San Marcos | Jan 2 | Dec 30 | 10a |
| 92101 | San Diego | Jan 6 | Dec 31 | 11a |
| 92102 | San Diego | Jan 6 | Dec 21 | 10b |
| 92103 | San Diego | Jan 6 | Dec 21 | 10b |
| 92104 | San Diego | Jan 6 | Dec 21 | 10b |
| 92105 | San Diego | Jan 6 | Dec 21 | 10b |
| 92106 | San Diego | Jan 6 | Dec 31 | 10b |
| 92107 | San Diego | Jan 6 | Dec 21 | 10b |
| 92108 | San Diego | Jan 6 | Dec 21 | 10b |
| 92109 | San Diego | Jan 6 | Dec 21 | 10b |
| 92110 | San Diego | Jan 6 | Dec 21 | 10b |
| 92111 | San Diego | Jan 6 | Dec 21 | 10b |
| 92113 | San Diego | Jan 6 | Dec 31 | 10b |
| 92114 | San Diego | Jan 6 | Dec 21 | 10b |
| 92115 | San Diego | Jan 6 | Dec 21 | 10b |
| 92116 | San Diego | Jan 6 | Dec 21 | 10b |
| 92117 | San Diego | Jan 6 | Dec 21 | 10b |
| 92118 | Coronado | Jan 6 | Dec 31 | 10b |
| 92119 | San Diego | Jan 6 | Dec 21 | 10b |
| 92120 | San Diego | Jan 6 | Dec 21 | 10b |
| 92121 | San Diego | Jan 5 | Jan 2 (next year) | 10b |
| 92122 | San Diego | Jan 6 | Dec 21 | 10b |
| 92123 | San Diego | Jan 6 | Dec 21 | 10b |
| 92124 | San Diego | Jan 6 | Dec 21 | 10b |
| 92126 | San Diego | Jan 5 | Jan 2 (next year) | 10b |
| 92127 | San Diego | Jan 2 | Dec 30 | 10a |
| 92128 | San Diego | Jan 5 | Jan 2 (next year) | 10a |
| 92129 | San Diego | Jan 5 | Jan 2 (next year) | 10a |
| 92130 | San Diego | Jan 2 | Dec 30 | 10b |
| 92131 | San Diego | Jan 6 | Dec 21 | 10b |
| 92132 | San Diego | Jan 6 | Dec 31 | 11a |
| 92134 | San Diego | Jan 6 | Dec 21 | 10b |
| 92135 | Coronado | Jan 6 | Dec 31 | 11a |
| 92136 | San Diego | Jan 6 | Dec 31 | 10b |
| 92139 | San Diego | Jan 6 | Dec 31 | 10b |
| 92140 | San Diego | Jan 6 | Dec 21 | 11a |
| 92145 | San Diego | Jan 6 | Dec 21 | 10b |
| 92147 | San Diego | Jan 6 | Dec 31 | 11a |
| 92154 | San Diego | Jan 6 | Dec 31 | 10b |
| 92155 | Coronado | Jan 6 | Dec 31 | 10b |
| 92161 | San Diego | Jan 6 | Dec 21 | 10b |
| 92173 | San Diego | Jan 6 | Dec 31 | 10b |
| 92179 | Jan 6 | Dec 31 | 10b | |
| 92182 | San Diego | Jan 6 | Dec 21 | 10b |
| 92672 | San Clemente | Feb 16 | Dec 8 | 10b |
Nearby counties
Riverside County Orange County Imperial County San Bernardino County Los Angeles County Ventura County
All California counties · Download California frost dates (CSV)
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