Foresthill California Climate Data

Monthly Average Climate Data for Foresthill California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January2.3 °C11.2 °C238.76 mm
February2.2 °C11.9 °C230.63 mm
March3.4 °C14.5 °C196.85 mm
April4.9 °C17.3 °C116.08 mm
May8.8 °C22 °C71.37 mm
June13.6 °C27.7 °C20.57 mm
July17.9 °C32.1 °C0 mm
August18.3 °C31.9 °C2.54 mm
September15 °C28.6 °C14.73 mm
October10.7 °C21.8 °C69.34 mm
November5.7 °C14.6 °C137.92 mm
December2.3 °C10.2 °C255.02 mm
Annual8.8 °C20.3 °C1353.81 mm

Climate Data for Foresthill California

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
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