Geyserville California Climate Data

Monthly Average Climate Data for Geyserville California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January37.8 °F58.0 °F7.98 in.
February39.1 °F61.5 °F8.01 in.
March41.2 °F65.2 °F5.59 in.
April43.1 °F69.9 °F2.71 in.
May46.8 °F76.2 °F1.42 in.
June50.6 °F83.6 °F0.27 in.
July52.4 °F86.4 °F0.03 in.
August51.9 °F87.4 °F0.06 in.
September49.8 °F86.2 °F0.15 in.
October45.6 °F77.9 °F1.81 in.
November40.5 °F65.8 °F3.92 in.
December37.3 °F57.8 °F7.81 in.
Annual44.7 °F73 °F39.76 in.

Climate Data for Geyserville California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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