Forsyth Montana Climate Data

Monthly Average Climate Data for Forsyth Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12 °C0.6 °C12.95 mm
February-10.2 °C3 °C12.7 mm
March-4.8 °C9.2 °C20.57 mm
April0.7 °C15.1 °C44.2 mm
May6.2 °C20.3 °C66.29 mm
June11.4 °C25.8 °C63.5 mm
July14.8 °C31.2 °C37.08 mm
August13.5 °C30.6 °C26.92 mm
September7.8 °C24.7 °C36.58 mm
October1.2 °C15.8 °C32.51 mm
November-5.4 °C8.1 °C14.99 mm
December-10.8 °C1.8 °C12.45 mm
Annual1 °C15.5 °C380.74 mm

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 : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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