Highland California Climate Data

Monthly Average Climate Data for Highland California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.9 °C19.2 °C69.6 mm
February6.3 °C19.3 °C87.63 mm
March7.8 °C21.3 °C58.17 mm
April9.3 °C23.8 °C23.37 mm
May11.9 °C26.6 °C9.4 mm
June14.2 °C30.9 °C2.29 mm
July17.2 °C34.8 °C2.03 mm
August17.7 °C35.4 °C2.29 mm
September16.2 °C33.4 °C4.06 mm
October12.4 °C27.9 °C14.73 mm
November8.3 °C23.1 °C22.35 mm
December5.4 °C18.7 °C57.4 mm
Annual11.1 °C26.2 °C353.32 mm

Climate Data for Highland California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 10a : -1.1°C to 1.7°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
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