Powder River Wyoming Climate Data

Monthly Average Climate Data for Powder River Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.9 °F34.5 °F0.39 in.
February14.3 °F36.6 °F0.4 in.
March22.5 °F47.0 °F1.03 in.
April29.0 °F54.9 °F1.26 in.
May37.8 °F65.1 °F2.42 in.
June46.3 °F77.6 °F1.34 in.
July53.7 °F87.6 °F0.94 in.
August51.7 °F85.8 °F0.53 in.
September42.5 °F74.7 °F1.01 in.
October31.7 °F59.4 °F0.99 in.
November21.3 °F45.3 °F0.5 in.
December13.8 °F34.8 °F0.51 in.
Annual31.5 °F58.6 °F11.32 in.

Climate Data for Powder River Wyoming

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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