Healdsburg California Climate Data

Monthly Average Climate Data for Healdsburg California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.3 °C14.3 °C215.39 mm
February4.1 °C16.2 °C213.61 mm
March5.2 °C18.1 °C153.16 mm
April6.1 °C20.9 °C71.63 mm
May8 °C24.4 °C44.45 mm
June9.9 °C28 °C6.1 mm
July10.8 °C29.3 °C0.51 mm
August10.7 °C29.6 °C1.27 mm
September9.6 °C28.9 °C2.29 mm
October7.5 °C24.9 °C46.23 mm
November4.7 °C18.7 °C105.16 mm
December2.9 °C14.3 °C220.47 mm
Annual6.9 °C22.3 °C1080.27 mm

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 : -3.9°C to -1.1°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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