Norco California Climate Data

Monthly Average Climate Data for Norco California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January43.0 °F68.1 °F2.09 in.
February43.6 °F68.5 °F2.78 in.
March46.0 °F71.7 °F1.7 in.
April48.5 °F75.4 °F0.57 in.
May53.3 °F79.1 °F0.21 in.
June57.2 °F85.4 °F0.04 in.
July61.5 °F91.8 °F0.07 in.
August62.3 °F93.5 °F0.04 in.
September60.0 °F90.8 °F0.12 in.
October53.7 °F82.9 °F0.35 in.
November46.3 °F74.9 °F0.64 in.
December41.7 °F67.6 °F1.82 in.
Annual51.4 °F79.1 °F10.43 in.

Climate Data for Norco California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 11 - Feb. 20
Average Days With Frost5-10 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 ClassificationCsa - Hot-Summer Mediterranean Climate