Casper Mountain Wyoming Climate Data

Monthly Average Climate Data for Casper Mountain Wyoming

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.1 °C-3.1 °C44.2 mm
February-11 °C-2.2 °C50.29 mm
March-7.3 °C3.1 °C65.79 mm
April-4.4 °C7.3 °C88.9 mm
May0.6 °C12.7 °C105.41 mm
June5.8 °C19.5 °C54.36 mm
July10.4 °C24.8 °C25.65 mm
August9.9 °C24 °C23.88 mm
September5.2 °C18.2 °C44.7 mm
October-1.3 °C9.9 °C68.07 mm
November-6.7 °C2 °C45.47 mm
December-10.9 °C-3.3 °C50.04 mm
Annual-1.7 °C9.4 °C666.76 mm

Climate Data for Casper Mountain Wyoming

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 21 - Jun. 30
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 ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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