Sonoma California Climate Data

Monthly Average Climate Data for Sonoma California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.6 °F57.1 °F5.34 in.
February40.2 °F60.7 °F5.55 in.
March41.9 °F64.5 °F3.56 in.
April43.6 °F67.6 °F1.7 in.
May47.3 °F72.8 °F0.98 in.
June50.6 °F79.4 °F0.21 in.
July52.7 °F82.5 °F0.01 in.
August52.9 °F82.7 °F0.05 in.
September50.9 °F82.3 °F0.08 in.
October47.4 °F76.2 °F1.53 in.
November42.7 °F65.0 °F2.7 in.
December38.8 °F57.1 °F5.54 in.
Annual45.6 °F70.7 °F27.25 in.

Climate Data for Sonoma California

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°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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