Wallula Washington Climate Data

Monthly Average Climate Data for Wallula Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January29.6 °F41.9 °F1.16 in.
February31.0 °F47.9 °F0.84 in.
March35.7 °F57.4 °F0.76 in.
April41.0 °F65.1 °F0.73 in.
May48.0 °F74.1 °F0.87 in.
June54.0 °F80.8 °F0.67 in.
July59.5 °F90.1 °F0.2 in.
August58.6 °F88.9 °F0.23 in.
September50.9 °F79.6 °F0.29 in.
October41.9 °F65.3 °F0.75 in.
November34.7 °F50.8 °F0.99 in.
December29.6 °F41.5 °F1.19 in.
Annual42.9 °F65.3 °F8.68 in.

Climate Data for Wallula Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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