Montana Weather in December

With daytime temperatures of -3°C (27°F) and nighttime lows of -12°C (10°F), December in Montana brings very low temperatures during the day. Do keep in mind that quite a bit of snowfall is typical. Around 139 mm (5.5 in) falls on average.

Rainfall in Montana in December

Historically, approximately 14 days this month are expected to have snow, averaging 139 mm (5.5 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Montana in December

In December, Montana gets very low temperatures, with highs of -3°C (27°F). Nights cool to around -12°C (10°F). Winter occurs in December. Expect a distinctly cold feel throughout the day, not just overnight. Nights are well below freezing at -12°C (10°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. With the arrival of this cold month, make sure you're dressed in warm clothing. It's important to be ready for the chill.

Sunshine in Montana in December

The area sees fewer sunny days, with a projection of about 70 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.

Wind Speed in Montana in December

Average wind conditions reach 1 m/s (2 knots) in December. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Montana. Our weather planner can help you explore destinations with more pleasant weather conditions.