Harrington Washington Climate Data

Monthly Average Climate Data for Harrington Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.0 °F34.0 °F1.62 in.
February24.9 °F39.8 °F1.07 in.
March29.3 °F49.4 °F1.33 in.
April33.1 °F58.1 °F0.98 in.
May40.4 °F67.4 °F1.13 in.
June45.6 °F73.9 °F0.99 in.
July51.3 °F84.5 °F0.4 in.
August51.2 °F84.1 °F0.35 in.
September43.6 °F74.9 °F0.4 in.
October34.9 °F59.5 °F1.07 in.
November27.9 °F43.5 °F1.57 in.
December22.5 °F33.7 °F1.8 in.
Annual35.6 °F58.6 °F12.71 in.

Climate Data for Harrington Washington

Average First Frost DateAug. 21 - Aug. 31
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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