San Ramon California Climate Data

Monthly Average Climate Data for San Ramon California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4.3 °C13.9 °C121.67 mm
February5.2 °C16.1 °C127 mm
March6.3 °C18.2 °C90.68 mm
April7.5 °C20 °C45.72 mm
May9.8 °C23 °C21.08 mm
June11.7 °C26.9 °C4.06 mm
July13.3 °C29.9 °C0.51 mm
August13.5 °C29.8 °C1.02 mm
September12.7 °C28.8 °C2.54 mm
October10.3 °C24.6 °C28.7 mm
November6.6 °C18.4 °C61.72 mm
December4.2 °C13.9 °C126.24 mm
Annual8.8 °C22 °C630.94 mm

Climate Data for San Ramon California

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
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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