San Rafael California Climate Data

Monthly Average Climate Data for San Rafael California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.6 °C13.5 °C204.72 mm
February6.4 °C15.7 °C207.77 mm
March7.1 °C17.4 °C134.87 mm
April8 °C19.8 °C60.71 mm
May9.6 °C22.5 °C28.96 mm
June11.1 °C25.4 °C6.35 mm
July12 °C26.7 °C0 mm
August12.3 °C26.9 °C1.27 mm
September11.8 °C26.7 °C2.29 mm
October10.1 °C23.7 °C44.2 mm
November7.6 °C17.8 °C99.57 mm
December5.5 °C13.7 °C216.92 mm
Annual8.9 °C20.8 °C1007.63 mm

Climate Data for San Rafael California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With FrostFrost Rare
Plant Hardiness Zone - 2023Zone 9b : -3.9°C to -1.1°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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