Fairfield Washington Climate Data

Monthly Average Climate Data for Fairfield Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.2 °C2.3 °C69.6 mm
February-3.7 °C4.4 °C50.29 mm
March-1.5 °C8.8 °C60.2 mm
April1.1 °C13.3 °C46.48 mm
May4.7 °C18.4 °C52.58 mm
June7.7 °C21.9 °C42.67 mm
July10.1 °C28.3 °C15.49 mm
August10.1 °C28.7 °C13.72 mm
September6 °C23.3 °C18.8 mm
October1.6 °C14.9 °C45.72 mm
November-1.6 °C6.4 °C69.09 mm
December-4.6 °C1.6 °C74.68 mm
Annual2.1 °C14.4 °C559.32 mm

Climate Data for Fairfield Washington

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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