Forsyth Montana Climate Data

Monthly Average Climate Data for Forsyth Montana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.4 °F33.1 °F0.51 in.
February13.6 °F37.4 °F0.5 in.
March23.3 °F48.6 °F0.81 in.
April33.2 °F59.1 °F1.74 in.
May43.1 °F68.6 °F2.61 in.
June52.5 °F78.4 °F2.5 in.
July58.7 °F88.1 °F1.46 in.
August56.3 °F87.0 °F1.06 in.
September46.1 °F76.4 °F1.44 in.
October34.2 °F60.4 °F1.28 in.
November22.3 °F46.6 °F0.59 in.
December12.6 °F35.3 °F0.49 in.
Annual33.9 °F59.9 °F14.99 in.

Climate Data for Forsyth 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 ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate