Fort Smith Montana Climate Data

Monthly Average Climate Data for Fort Smith Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.3 °C3.8 °C19.05 mm
February-7.3 °C5.4 °C19.3 mm
March-3.1 °C10.7 °C30.48 mm
April1.5 °C15.4 °C56.39 mm
May6.3 °C20.8 °C67.06 mm
June10.9 °C26.5 °C53.09 mm
July14.4 °C32.2 °C28.7 mm
August13.2 °C31.4 °C20.07 mm
September8.4 °C25.3 °C42.16 mm
October2.3 °C16.9 °C48.51 mm
November-3.3 °C9.2 °C23.37 mm
December-7.4 °C4.2 °C17.53 mm
Annual2.3 °C16.8 °C425.71 mm

Climate Data for Fort Smith Montana

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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