Vallejo California Climate Data

Monthly Average Climate Data for Vallejo California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January40.3 °F56.4 °F4.31 in.
February41.7 °F60.5 °F4.15 in.
March43.8 °F64.6 °F2.89 in.
April46.0 °F68.8 °F1.39 in.
May49.9 °F73.2 °F0.64 in.
June53.2 °F76.3 °F0.13 in.
July55.2 °F80.5 °F0.0 in.
August55.3 °F80.5 °F0.03 in.
September53.9 °F80.8 °F0.07 in.
October49.7 °F74.7 °F1.0 in.
November43.7 °F64.6 °F2.22 in.
December40.0 °F56.6 °F3.93 in.
Annual47.7 °F69.8 °F20.76 in.

Climate Data for Vallejo California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With Frost5-10 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