Rancho San Diego California Climate Data

Monthly Average Climate Data for Rancho San Diego California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January7.1 °C19.9 °C62.23 mm
February7.7 °C20.1 °C73.41 mm
March9.2 °C20.6 °C50.8 mm
April10.5 °C21.7 °C22.61 mm
May13.1 °C22.7 °C9.14 mm
June14.9 °C24.3 °C1.27 mm
July17 °C26.9 °C2.29 mm
August17.7 °C28.2 °C0.76 mm
September16.7 °C28.2 °C3.81 mm
October13.6 °C26.1 °C13.72 mm
November9.6 °C22.9 °C26.67 mm
December6.7 °C19.7 °C52.07 mm
Annual12 °C23.4 °C318.78 mm

Climate Data for Rancho San Diego California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateJan. 21 - Jan. 31
Average Days With FrostFrost Rare
Plant Hardiness Zone - 2023Zone 10b : 1.7°C to 4.4°C
Plant Hardiness Zone - 2012Zone 10a : -1.1°C to 1.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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