Evanston Wyoming Climate Data

Monthly Average Climate Data for Evanston Wyoming

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.9 °C0.3 °C18.54 mm
February-11.3 °C1.6 °C16.26 mm
March-6.8 °C6.6 °C18.29 mm
April-3.4 °C10.8 °C29.46 mm
May0.8 °C16.3 °C42.93 mm
June4.4 °C22.4 °C30.99 mm
July8.7 °C27.9 °C18.29 mm
August8.1 °C26.9 °C26.42 mm
September3.6 °C21.8 °C32.26 mm
October-2.2 °C14.3 °C30.99 mm
November-7.4 °C6.2 °C24.64 mm
December-12.2 °C0.4 °C21.08 mm
Annual-2.5 °C13 °C310.15 mm

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 : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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