Folsom California Climate Data

Monthly Average Climate Data for Folsom California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January39.4 °F55.6 °F4.66 in.
February41.5 °F60.4 °F4.46 in.
March44.6 °F65.4 °F3.78 in.
April46.9 °F71.3 °F1.92 in.
May52.2 °F79.3 °F1.35 in.
June57.8 °F87.5 °F0.24 in.
July61.3 °F93.5 °F0.01 in.
August60.6 °F93.2 °F0.02 in.
September57.7 °F88.1 °F0.15 in.
October51.2 °F77.7 °F1.27 in.
November43.5 °F64.4 °F2.37 in.
December38.9 °F55.9 °F4.53 in.
Annual49.6 °F74.4 °F24.76 in.

Climate Data for Folsom California

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateMar. 11 - Mar. 20
Average Days With Frost20-30 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