Riverside California Climate Data

Monthly Average Climate Data for Riverside California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January43.2 °F67.8 °F2.19 in.
February44.0 °F68.2 °F2.58 in.
March46.5 °F71.5 °F1.69 in.
April49.1 °F75.8 °F0.52 in.
May53.9 °F80.0 °F0.21 in.
June57.9 °F86.4 °F0.06 in.
July62.5 °F93.1 °F0.08 in.
August63.3 °F94.8 °F0.05 in.
September60.8 °F91.7 °F0.12 in.
October54.3 °F83.3 °F0.41 in.
November46.9 °F74.7 °F0.6 in.
December42.1 °F67.2 °F1.4 in.
Annual52 °F79.5 °F9.91 in.

Climate Data for Riverside California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 10a : 30°F to 25°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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