Glasgow Montana Climate Data

Monthly Average Climate Data for Glasgow Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January3.3 °F24.7 °F0.45 in.
February7.2 °F30.0 °F0.37 in.
March19.3 °F43.1 °F0.56 in.
April31.1 °F57.9 °F1.08 in.
May42.0 °F68.2 °F2.14 in.
June51.5 °F76.9 °F2.82 in.
July57.1 °F86.3 °F1.72 in.
August55.0 °F85.8 °F1.26 in.
September44.8 °F74.1 °F1.05 in.
October32.2 °F57.8 °F1.04 in.
November18.8 °F41.6 °F0.52 in.
December7.9 °F28.5 °F0.46 in.
Annual30.9 °F56.2 °F13.47 in.

Climate Data for Glasgow Montana

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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