World Resorts USA Missoula Weather

Missoula weather in December

Weather in Missoula: December

Average day temperature: 33.6°F
Average night temperature: 24.9°F
Number of sunny days: 7 days
Day length: 8.5 - 8.8 hours
Number of rainy days: 0 days
Precipitation totals: 0.7 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 50°F. At the same time the lowest night temperature was 15°F. Daily and nightly averages during December were 39.3°F and 34.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Missoula in December is 0.7 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 3.2 mph It makes December one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 3.9.

Best time for vacation in Missoula

Sunniest months:
July 25 days
August 23 days
September 19 days
Warmest months:
July 84.0 °F
August 81.3 °F
September 72.9 °F
Coldest months:
January 30.6 °F
February 31.6 °F
December 33.6 °F
Rainiest months:
June 2 days
August 2 days
May 2 days
Windiest months:
April 4.2 mph
May 4.1 mph
June 4.1 mph

Missoula on a weather map

Missoula
+43°F
N 2 mph
Feels like: +41°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+68°F
+68°F
+45°F
+54°F
+68°F
+73°F
+64°F
+30°F
+54°F
+46°F
+57°F
+54°F
+45°F
+34°F
24 Hours Forecast
Missoula
Local time: 04:17
January 13, tuesday
0600
43°F
N
2 mph
0900
43°F
NW
1 mph
1200
46°F
NE
2 mph
1500
52°F
NE
1 mph
1800
39°F
E
1 mph
2100
34°F
NW
1 mph
January 14, wednesday
0000
30°F
NW
1 mph
0300
30°F
NW
1 mph
Units of measurement: °C / °F