Healdsburg California Climate Data

Monthly Average Climate Data for Healdsburg California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.0 °F57.7 °F8.48 in.
February39.3 °F61.2 °F8.41 in.
March41.3 °F64.6 °F6.03 in.
April43.0 °F69.7 °F2.82 in.
May46.4 °F75.9 °F1.75 in.
June49.8 °F82.4 °F0.24 in.
July51.5 °F84.8 °F0.02 in.
August51.3 °F85.3 °F0.05 in.
September49.3 °F84.0 °F0.09 in.
October45.5 °F76.8 °F1.82 in.
November40.4 °F65.6 °F4.14 in.
December37.3 °F57.7 °F8.68 in.
Annual44.4 °F72.1 °F42.53 in.

Climate Data for Healdsburg 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 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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