Herron Montana Climate Data

Monthly Average Climate Data for Herron Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.0 °F28.2 °F0.43 in.
February9.7 °F32.3 °F0.34 in.
March19.5 °F43.5 °F0.49 in.
April30.4 °F56.8 °F1.17 in.
May40.3 °F66.6 °F1.86 in.
June48.9 °F74.9 °F2.68 in.
July54.3 °F85.1 °F1.63 in.
August52.3 °F84.5 °F0.94 in.
September42.7 °F73.1 °F1.11 in.
October30.9 °F57.8 °F0.8 in.
November19.8 °F42.2 °F0.61 in.
December10.3 °F32.1 °F0.38 in.
Annual30.5 °F56.4 °F12.44 in.

Climate Data for Herron 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 4a : -30°F to -25°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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