Half Moon Bay California Climate Data

Monthly Average Climate Data for Half Moon Bay California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January6.5 °C14.8 °C134.37 mm
February6.7 °C15.4 °C127 mm
March7.3 °C16.3 °C94.49 mm
April7.9 °C15.9 °C50.04 mm
May9.6 °C16.8 °C31.24 mm
June10.9 °C17.4 °C8.64 mm
July12.2 °C18.4 °C2.79 mm
August12.5 °C18.9 °C6.35 mm
September11.9 °C19.5 °C5.08 mm
October9.9 °C19.3 °C29.97 mm
November7.9 °C17.3 °C65.79 mm
December6.3 °C14.8 °C134.37 mm
Annual9.1 °C17.1 °C690.13 mm

Climate Data for Half Moon Bay California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 10a : -1.1°C to 1.7°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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