January weather forecast and climate
Montana, USA

Flag of Montana, USA
Flag of Montana, USA

Weather in January

January is the coldest month of the year in Montana as the temperatures are in the frigid zones. The average low temperatures in the eastern half dive to 2°F (-16.7°C) in Glasgow, while they are around 22°F (-5.6°C) in Flathead Lake in western Montana. Average high temperatures are in the 22°F (-5.6°C) to 32°F (0°C) zone as the days are short and cold in the absence of strong sun.
January is also the snowiest month of the year that receives one-third of the average annual snowfall across the state. The southwestern mountain ranges receive a vast amount of snow to the tune of 40" (1016mm), while high elevation plateaus like Cooke City in the south accumulate 35" (889mm).
January is a slow tourist season but sees winter enthusiasts for activities like dog sledding, sleigh riding, snowshoeing, and ice fishing, among others. Expect a deep snowpack in the mountains up to 100" (2540mm) and the sunshine to last only for 4 hours a day amid cloudy skies in the west and mostly clear skies in the east.
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