Valley Washington Climate Data

Monthly Average Climate Data for Valley Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.8 °F33.9 °F2.63 in.
February22.4 °F40.8 °F1.75 in.
March27.7 °F50.7 °F2.2 in.
April32.8 °F60.0 °F1.54 in.
May40.3 °F69.9 °F1.9 in.
June45.8 °F75.8 °F1.82 in.
July49.6 °F86.4 °F0.72 in.
August48.1 °F86.8 °F0.5 in.
September41.0 °F76.5 °F0.7 in.
October32.7 °F60.1 °F1.66 in.
November27.9 °F43.5 °F2.59 in.
December21.5 °F33.7 °F2.99 in.
Annual34.3 °F59.8 °F21 in.

Climate Data for Valley 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