Rio Vista California Climate Data

Monthly Average Climate Data for Rio Vista California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.8 °C13.1 °C85.6 mm
February5.2 °C15.8 °C91.69 mm
March6.9 °C18.6 °C57.66 mm
April8.5 °C21.2 °C34.29 mm
May11.1 °C24.8 °C18.8 mm
June13.4 °C28.6 °C4.57 mm
July14.6 °C31 °C0 mm
August14.6 °C30.8 °C1.02 mm
September13.5 °C29.6 °C1.78 mm
October10.3 °C24.8 °C21.34 mm
November6.1 °C18.2 °C41.66 mm
December3.6 °C13.3 °C87.88 mm
Annual9.3 °C22.5 °C446.29 mm

Climate Data for Rio Vista California

Average First Frost DateDec. 1 - Dec. 10
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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