Eureka California Climate Data

Monthly Average Climate Data for Eureka California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.7 °C12.8 °C202.95 mm
February5.8 °C12.9 °C156.21 mm
March6.1 °C13.3 °C159.51 mm
April7 °C13.4 °C102.11 mm
May8.7 °C14.4 °C43.43 mm
June10 °C15.4 °C21.08 mm
July11.3 °C15.9 °C6.35 mm
August11.6 °C16.7 °C4.32 mm
September10.3 °C16.7 °C14.48 mm
October8.4 °C15.8 °C56.39 mm
November6.8 °C14.4 °C126.75 mm
December5.3 °C12.7 °C217.42 mm
Annual8.1 °C14.5 °C1111 mm

Climate Data for Eureka California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 11 - Feb. 20
Average Days With Frost5-10 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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