Oroville Washington Climate Data

Monthly Average Climate Data for Oroville Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.8 °C1.5 °C42.42 mm
February-3.1 °C5.4 °C22.61 mm
March-0.1 °C11.7 °C30.73 mm
April3.3 °C17.4 °C23.62 mm
May7.7 °C22.8 °C29.21 mm
June11.4 °C26.2 °C49.78 mm
July14.3 °C31.1 °C24.13 mm
August13.6 °C30.8 °C14.73 mm
September8.8 °C24.9 °C12.95 mm
October3.9 °C16.2 °C25.4 mm
November-0.3 °C7.3 °C33.53 mm
December-3.6 °C1.7 °C45.97 mm
Annual4.3 °C16.4 °C355.08 mm

Climate Data for Oroville Washington

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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