Gilroy California Climate Data

Monthly Average Climate Data for Gilroy California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4.2 °C15.8 °C105.16 mm
February5.1 °C16.8 °C113.54 mm
March6.1 °C18.6 °C71.37 mm
April7.1 °C21.3 °C32.51 mm
May9 °C24.2 °C12.95 mm
June10.7 °C27.5 °C2.54 mm
July12.2 °C29.1 °C0 mm
August12.3 °C29.6 °C0.76 mm
September11.4 °C29 °C1.27 mm
October9.1 °C25.9 °C20.32 mm
November5.9 °C19.6 °C40.39 mm
December3.6 °C15.7 °C103.89 mm
Annual8.1 °C22.8 °C504.7 mm

Climate Data for Gilroy California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : -3.9°C to -1.1°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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