Hartland California Climate Data

Monthly Average Climate Data for Hartland California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.1 °C11.1 °C155.7 mm
February0.7 °C10.7 °C147.57 mm
March2.1 °C12.6 °C131.57 mm
April3.8 °C14.7 °C72.39 mm
May7.8 °C19.7 °C35.31 mm
June12.2 °C25.6 °C11.68 mm
July15.9 °C29.8 °C4.57 mm
August15.4 °C29.8 °C2.29 mm
September13.1 °C26.7 °C5.59 mm
October8 °C20.8 °C39.37 mm
November3.8 °C14.7 °C72.39 mm
December0.9 °C10.6 °C133.6 mm
Annual7.1 °C18.9 °C812.03 mm

Climate Data for Hartland California

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 8b : -9.4°C to -6.7°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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