San Diego California Climate Data

Monthly Average Climate Data for San Diego California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January9.1 °C18.9 °C48.26 mm
February9.6 °C18.6 °C60.71 mm
March10.9 °C18.9 °C41.15 mm
April12.2 °C20.1 °C18.29 mm
May14.3 °C20.7 °C5.33 mm
June16 °C21.7 °C1.02 mm
July17.8 °C23.6 °C1.52 mm
August18.5 °C24.8 °C0.51 mm
September17.7 °C24.9 °C2.79 mm
October14.9 °C23.5 °C10.41 mm
November11.6 °C21.4 °C20.57 mm
December8.7 °C18.7 °C41.91 mm
Annual13.4 °C21.3 °C252.47 mm

Climate Data for San Diego California

Average First Frost DateFrost Rare
Average Last Frost DateFrost Rare
Average Days With FrostFrost Free
Plant Hardiness Zone - 2023Zone 10b : 1.7°C to 4.4°C
Plant Hardiness Zone - 2012Zone 10b : 1.7°C to 4.4°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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