Humboldt Hill California Climate Data

Monthly Average Climate Data for Humboldt Hill California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January42.2 °F54.7 °F8.13 in.
February42.0 °F55.7 °F6.45 in.
March42.2 °F56.7 °F6.47 in.
April43.6 °F59.2 °F4.26 in.
May46.6 °F60.9 °F1.87 in.
June49.0 °F63.4 °F1.04 in.
July51.9 °F64.6 °F0.35 in.
August52.1 °F65.7 °F0.18 in.
September49.5 °F66.3 °F0.72 in.
October46.4 °F64.3 °F2.34 in.
November44.0 °F58.5 °F5.18 in.
December41.4 °F54.0 °F8.89 in.
Annual45.9 °F60.3 °F45.88 in.

Climate Data for Humboldt Hill California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
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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