Fairfield California Climate Data

Monthly Average Climate Data for Fairfield California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.7 °F56.0 °F4.5 in.
February40.7 °F60.5 °F4.71 in.
March43.6 °F65.0 °F3.08 in.
April46.0 °F69.9 °F1.45 in.
May50.5 °F76.8 °F0.69 in.
June54.4 °F82.6 °F0.16 in.
July56.7 °F86.5 °F0.0 in.
August56.6 °F86.3 °F0.02 in.
September55.0 °F85.0 °F0.06 in.
October50.1 °F77.5 °F1.08 in.
November42.7 °F64.9 °F2.35 in.
December38.3 °F56.2 °F5.08 in.
Annual47.8 °F72.3 °F23.18 in.

Climate Data for Fairfield California

Average First Frost DateDec. 1 - Dec. 10
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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