Riverdale California Climate Data

Monthly Average Climate Data for Riverdale California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January37.5 °F56.2 °F1.8 in.
February40.2 °F62.2 °F1.5 in.
March43.2 °F68.6 °F1.46 in.
April46.3 °F74.8 °F0.69 in.
May53.0 °F82.9 °F0.43 in.
June58.2 °F90.9 °F0.06 in.
July63.6 °F96.7 °F0.01 in.
August62.4 °F95.9 °F0.0 in.
September57.8 °F91.1 °F0.06 in.
October50.0 °F80.8 °F0.39 in.
November41.1 °F66.9 °F0.66 in.
December36.0 °F56.6 °F1.33 in.
Annual49.1 °F77 °F8.39 in.

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 : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
2024 plantmaps.com