Monte Rio California Climate Data

Monthly Average Climate Data for Monte Rio California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.4 °C14.1 °C238.51 mm
February4.1 °C15.8 °C242.06 mm
March5 °C17.4 °C170.18 mm
April5.8 °C19.7 °C81.28 mm
May7.6 °C22.5 °C46.99 mm
June9.3 °C25.4 °C7.37 mm
July10.4 °C26.2 °C1.27 mm
August10.6 °C26.8 °C2.54 mm
September9.3 °C26.2 °C4.32 mm
October7.4 °C23.7 °C55.88 mm
November4.9 °C18.3 °C126.49 mm
December3.1 °C14.2 °C270 mm
Annual6.7 °C20.9 °C1246.89 mm

Climate Data for Monte Rio California

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost20-30 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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