Chewelah Washington Climate Data

Monthly Average Climate Data for Chewelah Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.2 °F34.0 °F2.66 in.
February22.7 °F41.0 °F1.83 in.
March28.2 °F50.9 °F2.23 in.
April33.1 °F60.5 °F1.57 in.
May40.6 °F70.3 °F1.94 in.
June45.9 °F76.2 °F1.83 in.
July50.0 °F86.8 °F0.81 in.
August48.6 °F87.2 °F0.53 in.
September41.5 °F76.7 °F0.7 in.
October33.2 °F60.3 °F1.63 in.
November28.0 °F43.4 °F2.57 in.
December21.6 °F33.8 °F2.85 in.
Annual34.6 °F60.1 °F21.15 in.

Climate Data for Chewelah Washington

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer