Fort Shaw Montana Climate Data

Monthly Average Climate Data for Fort Shaw Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.7 °F36.5 °F0.37 in.
February15.9 °F38.7 °F0.45 in.
March22.3 °F46.6 °F0.56 in.
April30.6 °F56.3 °F1.55 in.
May39.2 °F65.5 °F1.96 in.
June46.8 °F73.3 °F2.69 in.
July51.8 °F84.2 °F1.1 in.
August50.2 °F83.2 °F1.1 in.
September42.9 °F72.8 °F1.17 in.
October33.5 °F59.0 °F0.84 in.
November24.0 °F45.3 °F0.53 in.
December16.5 °F36.9 °F0.39 in.
Annual32.4 °F58.2 °F12.71 in.

Climate Data for Fort Shaw Montana

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 1 - Jun. 10
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