Inchelium Washington Climate Data

Monthly Average Climate Data for Inchelium Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.2 °F34.6 °F2.04 in.
February23.5 °F40.6 °F1.5 in.
March28.9 °F51.3 °F1.85 in.
April34.2 °F61.3 °F1.32 in.
May41.7 °F71.4 °F1.41 in.
June47.5 °F77.2 °F1.2 in.
July52.0 °F87.4 °F0.62 in.
August50.7 °F87.4 °F0.41 in.
September43.8 °F77.2 °F0.65 in.
October35.2 °F60.1 °F1.47 in.
November29.2 °F43.7 °F2.06 in.
December23.1 °F34.5 °F2.66 in.
Annual36.1 °F60.6 °F17.19 in.

Climate Data for Inchelium Washington

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year