Geyserville California Climate Data

Monthly Average Climate Data for Geyserville California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.2 °C14.4 °C202.69 mm
February3.9 °C16.4 °C203.45 mm
March5.1 °C18.4 °C141.99 mm
April6.2 °C21.1 °C68.83 mm
May8.2 °C24.6 °C36.07 mm
June10.3 °C28.7 °C6.86 mm
July11.3 °C30.2 °C0.76 mm
August11.1 °C30.8 °C1.52 mm
September9.9 °C30.1 °C3.81 mm
October7.6 °C25.5 °C45.97 mm
November4.7 °C18.8 °C99.57 mm
December2.9 °C14.3 °C198.37 mm
Annual7 °C22.8 °C1009.89 mm

Climate Data for Geyserville California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 11 - Mar. 20
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°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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