Sunnyvale California Climate Data

Monthly Average Climate Data for Sunnyvale California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.3 °C14.9 °C81.79 mm
February6.3 °C16.6 °C91.19 mm
March7.5 °C18.5 °C56.9 mm
April8.5 °C20.4 °C28.19 mm
May10.5 °C23 °C9.65 mm
June12.2 °C25.8 °C2.79 mm
July13.7 °C27.1 °C0 mm
August13.8 °C27.1 °C1.27 mm
September12.9 °C26.8 °C1.78 mm
October10.7 °C24 °C16.51 mm
November7.4 °C18.4 °C36.07 mm
December5.1 °C14.8 °C73.66 mm
Annual9.5 °C21.5 °C399.8 mm

Climate Data for Sunnyvale California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateJan. 21 - Jan. 31
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 ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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