Rancho Cucamonga California Climate Data

Monthly Average Climate Data for Rancho Cucamonga California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January44.1 °F66.7 °F3.56 in.
February44.7 °F67.0 °F4.45 in.
March46.9 °F70.2 °F2.71 in.
April49.2 °F74.2 °F0.88 in.
May53.4 °F78.2 °F0.43 in.
June57.5 °F84.7 °F0.09 in.
July62.4 °F91.3 °F0.05 in.
August63.4 °F93.0 °F0.03 in.
September61.4 °F90.0 °F0.17 in.
October55.5 °F81.5 °F0.74 in.
November48.3 °F73.5 °F0.97 in.
December43.6 °F65.7 °F2.49 in.
Annual52.5 °F78 °F16.57 in.

Climate Data for Rancho Cucamonga California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 10a : 30°F to 25°F
Plant Hardiness Zone - 2012Zone 10a : 30°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsa - Hot-Summer Mediterranean Climate
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