Riverton Wyoming Climate Data

Monthly Average Climate Data for Riverton Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.2 °F32.8 °F0.37 in.
February10.8 °F37.8 °F0.44 in.
March22.4 °F50.5 °F0.64 in.
April30.5 °F58.7 °F1.32 in.
May40.0 °F68.2 °F2.1 in.
June48.2 °F80.2 °F1.08 in.
July54.9 °F89.9 °F0.69 in.
August52.4 °F87.4 °F0.45 in.
September43.2 °F76.0 °F0.75 in.
October31.3 °F60.3 °F0.93 in.
November18.3 °F44.9 °F0.38 in.
December7.8 °F32.5 °F0.3 in.
Annual30.5 °F59.9 °F9.45 in.

Climate Data for Riverton Wyoming

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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