Boonville California Climate Data

Monthly Average Climate Data for Boonville California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4 °C14.1 °C212.6 mm
February4.5 °C15.2 °C168.4 mm
March5.4 °C17.1 °C143.51 mm
April6.6 °C19.9 °C81.53 mm
May8.7 °C23.6 °C37.34 mm
June10.8 °C27.4 °C7.62 mm
July11.9 °C31.2 °C0.76 mm
August11.8 °C31.1 °C1.52 mm
September10.7 °C30.1 °C3.56 mm
October8.3 °C25.3 °C44.2 mm
November5.6 °C17.4 °C108.97 mm
December3.7 °C13.9 °C239.52 mm
Annual7.7 °C22.2 °C1049.53 mm

Climate Data for Boonville California

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost10-20 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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