Fortuna California Climate Data

Monthly Average Climate Data for Fortuna California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January41.4 °F55.6 °F7.02 in.
February41.6 °F56.4 °F6.72 in.
March42.2 °F57.3 °F5.69 in.
April43.9 °F58.9 °F3.97 in.
May47.3 °F63.1 °F1.58 in.
June49.6 °F64.7 °F0.84 in.
July52.2 °F66.4 °F0.2 in.
August52.6 °F68.6 °F0.09 in.
September50.3 °F69.3 °F0.48 in.
October47.0 °F67.0 °F2.19 in.
November43.6 °F59.2 °F5.06 in.
December40.8 °F54.8 °F7.73 in.
Annual46 °F61.8 °F41.57 in.

Climate Data for Fortuna California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateMar. 1 - Mar. 10
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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