Cupertino California Climate Data

Monthly Average Climate Data for Cupertino California

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January40.9 °F59.3 °F3.71 in.
February42.6 °F62.1 °F4.1 in.
March44.7 °F65.7 °F2.42 in.
April46.4 °F69.2 °F1.15 in.
May50.1 °F74.4 °F0.39 in.
June53.1 °F79.8 °F0.13 in.
July55.9 °F82.0 °F0.0 in.
August55.9 °F81.9 °F0.07 in.
September54.5 °F81.1 °F0.07 in.
October50.5 °F76.0 °F0.74 in.
November44.5 °F65.8 °F1.54 in.
December40.5 °F58.9 °F3.34 in.
Annual48.3 °F71.4 °F17.66 in.

Climate Data for Cupertino California

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 11 - Feb. 20
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate