Tieton Washington Climate Data

Monthly Average Climate Data for Tieton Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.3 °F36.7 °F1.93 in.
February25.8 °F43.1 °F1.32 in.
March30.1 °F51.1 °F0.99 in.
April35.0 °F58.8 °F0.67 in.
May41.8 °F68.0 °F0.87 in.
June47.7 °F74.7 °F0.62 in.
July53.6 °F84.1 °F0.41 in.
August52.7 °F83.4 °F0.2 in.
September45.3 °F74.8 °F0.35 in.
October35.8 °F60.4 °F1.04 in.
November27.9 °F45.8 °F0.96 in.
December22.5 °F35.6 °F1.83 in.
Annual36.8 °F59.7 °F11.19 in.

Climate Data for Tieton Washington

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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