Riverdale California Climate Data

Monthly Average Climate Data for Riverdale California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.1 °C13.4 °C45.72 mm
February4.6 °C16.8 °C38.1 mm
March6.2 °C20.3 °C37.08 mm
April7.9 °C23.8 °C17.53 mm
May11.7 °C28.3 °C10.92 mm
June14.6 °C32.7 °C1.52 mm
July17.6 °C35.9 °C0.25 mm
August16.9 °C35.5 °C0 mm
September14.3 °C32.8 °C1.52 mm
October10 °C27.1 °C9.91 mm
November5.1 °C19.4 °C16.76 mm
December2.2 °C13.7 °C33.78 mm
Annual9.5 °C25 °C213.09 mm

Climate Data for Riverdale California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost20-30 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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