Kelseyville California Climate Data

Monthly Average Climate Data for Kelseyville California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.3 °F55.7 °F5.65 in.
February35.1 °F59.1 °F5.42 in.
March36.8 °F63.7 °F3.39 in.
April39.4 °F68.5 °F1.93 in.
May44.0 °F76.8 °F1.16 in.
June49.1 °F86.0 °F0.2 in.
July54.3 °F94.2 °F0.03 in.
August53.0 °F93.1 °F0.05 in.
September48.3 °F87.6 °F0.1 in.
October42.5 °F76.1 °F1.29 in.
November36.8 °F62.3 °F2.68 in.
December33.3 °F55.0 °F5.81 in.
Annual42.2 °F73.2 °F27.71 in.

Climate Data for Kelseyville California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
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