Tieton Washington Climate Data

Monthly Average Climate Data for Tieton Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.8 °C2.6 °C49.02 mm
February-3.4 °C6.2 °C33.53 mm
March-1.1 °C10.6 °C25.15 mm
April1.7 °C14.9 °C17.02 mm
May5.4 °C20 °C22.1 mm
June8.7 °C23.7 °C15.75 mm
July12 °C28.9 °C10.41 mm
August11.5 °C28.6 °C5.08 mm
September7.4 °C23.8 °C8.89 mm
October2.1 °C15.8 °C26.42 mm
November-2.3 °C7.7 °C24.38 mm
December-5.3 °C2 °C46.48 mm
Annual2.7 °C15.4 °C284.23 mm

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 : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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