Concord California Climate Data

Monthly Average Climate Data for Concord California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4.4 °C13.6 °C92.46 mm
February5.3 °C16 °C91.19 mm
March6.8 °C18.6 °C63.5 mm
April8.3 °C20.8 °C36.32 mm
May10.7 °C24.2 °C14.99 mm
June12.7 °C27.9 °C4.06 mm
July13.9 °C30.3 °C0 mm
August13.8 °C30.4 °C0.51 mm
September13.1 °C28.9 °C1.78 mm
October10.6 °C24.7 °C18.8 mm
November6.6 °C18.3 °C42.67 mm
December4.1 °C13.7 °C83.82 mm
Annual9.2 °C22.3 °C450.1 mm

Climate Data for Concord 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 ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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