Hays Montana Climate Data

Monthly Average Climate Data for Hays Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.8 °F33.0 °F0.64 in.
February14.2 °F35.1 °F0.55 in.
March21.5 °F44.1 °F0.81 in.
April30.5 °F53.5 °F1.39 in.
May39.8 °F62.6 °F2.99 in.
June47.8 °F71.2 °F3.61 in.
July53.5 °F81.8 °F2.04 in.
August52.5 °F81.3 °F1.29 in.
September43.3 °F70.1 °F1.26 in.
October33.0 °F56.4 °F1.42 in.
November22.6 °F43.4 °F0.65 in.
December14.8 °F35.7 °F0.6 in.
Annual32.1 °F55.7 °F17.25 in.

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 : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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