Cupertino California Climate Data

Monthly Average Climate Data for Cupertino California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4.9 °C15.2 °C94.23 mm
February5.9 °C16.7 °C104.14 mm
March7.1 °C18.7 °C61.47 mm
April8 °C20.7 °C29.21 mm
May10.1 °C23.6 °C9.91 mm
June11.7 °C26.6 °C3.3 mm
July13.3 °C27.8 °C0 mm
August13.3 °C27.7 °C1.78 mm
September12.5 °C27.3 °C1.78 mm
October10.3 °C24.4 °C18.8 mm
November6.9 °C18.8 °C39.12 mm
December4.7 °C14.9 °C84.84 mm
Annual9.1 °C21.9 °C448.58 mm

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 : -3.9°C to -1.1°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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