Fairfield Washington Climate Data

Monthly Average Climate Data for Fairfield Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.4 °F36.1 °F2.74 in.
February25.3 °F40.0 °F1.98 in.
March29.3 °F47.9 °F2.37 in.
April34.0 °F55.9 °F1.83 in.
May40.5 °F65.2 °F2.07 in.
June45.8 °F71.4 °F1.68 in.
July50.2 °F83.0 °F0.61 in.
August50.1 °F83.7 °F0.54 in.
September42.8 °F73.9 °F0.74 in.
October34.8 °F58.9 °F1.8 in.
November29.1 °F43.6 °F2.72 in.
December23.8 °F34.8 °F2.94 in.
Annual35.8 °F57.9 °F22.02 in.

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 : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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