Janesville California Climate Data

Monthly Average Climate Data for Janesville California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.6 °F43.7 °F3.3 in.
February24.7 °F47.9 °F2.63 in.
March29.0 °F54.3 °F2.09 in.
April32.3 °F60.4 °F0.91 in.
May38.7 °F69.7 °F1.01 in.
June44.7 °F79.9 °F0.65 in.
July50.7 °F89.1 °F0.26 in.
August48.7 °F87.9 °F0.18 in.
September42.3 °F80.8 °F0.26 in.
October34.1 °F67.1 °F1.06 in.
November26.9 °F52.4 °F1.42 in.
December22.0 °F42.7 °F3.22 in.
Annual34.7 °F64.7 °F16.99 in.

Climate Data for Janesville California

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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