Colstrip Montana Climate Data

Monthly Average Climate Data for Colstrip Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.0 °F35.2 °F0.62 in.
February14.4 °F37.9 °F0.69 in.
March23.2 °F48.1 °F0.96 in.
April31.6 °F56.4 °F1.9 in.
May40.9 °F65.7 °F3.22 in.
June50.0 °F76.0 °F2.48 in.
July56.4 °F86.1 °F1.34 in.
August54.2 °F85.2 °F1.03 in.
September44.8 °F74.6 °F1.46 in.
October33.0 °F59.5 °F1.45 in.
November22.4 °F46.3 °F0.7 in.
December13.4 °F36.4 °F0.55 in.
Annual33 °F59 °F16.4 in.

Climate Data for Colstrip 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 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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