Hays Montana Climate Data

Monthly Average Climate Data for Hays Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.2 °C0.6 °C16.26 mm
February-9.9 °C1.7 °C13.97 mm
March-5.8 °C6.7 °C20.57 mm
April-0.8 °C11.9 °C35.31 mm
May4.3 °C17 °C75.95 mm
June8.8 °C21.8 °C91.69 mm
July11.9 °C27.7 °C51.82 mm
August11.4 °C27.4 °C32.77 mm
September6.3 °C21.2 °C32 mm
October0.6 °C13.6 °C36.07 mm
November-5.2 °C6.3 °C16.51 mm
December-9.6 °C2.1 °C15.24 mm
Annual0.1 °C13.2 °C438.16 mm

Climate Data for Hays Montana

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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