Evanston Wyoming Climate Data

Monthly Average Climate Data for Evanston Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.6 °F32.6 °F0.73 in.
February11.6 °F34.9 °F0.64 in.
March19.7 °F43.9 °F0.72 in.
April25.9 °F51.5 °F1.16 in.
May33.4 °F61.3 °F1.69 in.
June40.0 °F72.4 °F1.22 in.
July47.6 °F82.2 °F0.72 in.
August46.6 °F80.5 °F1.04 in.
September38.4 °F71.2 °F1.27 in.
October28.1 °F57.7 °F1.22 in.
November18.6 °F43.2 °F0.97 in.
December10.1 °F32.7 °F0.83 in.
Annual27.6 °F55.3 °F12.21 in.

Climate Data for Evanston Wyoming

Average First Frost DateSep.1 - Sep. 10
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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