Vacaville California Climate Data

Monthly Average Climate Data for Vacaville California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January38.6 °F56.8 °F5.26 in.
February40.6 °F61.1 °F5.29 in.
March43.6 °F65.8 °F3.44 in.
April46.5 °F72.0 °F1.47 in.
May51.5 °F79.6 °F0.77 in.
June56.4 °F87.4 °F0.17 in.
July58.9 °F92.6 °F0.0 in.
August58.1 °F91.8 °F0.02 in.
September56.0 °F88.7 °F0.07 in.
October50.3 °F79.2 °F1.02 in.
November43.1 °F65.8 °F2.31 in.
December38.4 °F57.0 °F5.32 in.
Annual48.5 °F74.8 °F25.14 in.

Climate Data for Vacaville 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 ClassificationCsa - Hot-Summer Mediterranean Climate