Weather in Great Falls: December
 |
Average day temperature: | 34.3°F |
| Average night temperature: | 26.1°F | |
 |
Number of sunny days: | 14 days |
| Day length: | 8.4 - 8.7 hours | |
 |
Number of rainy days: | 0 days |
| Precipitation totals: | 0.3 in. | |
| more information | ||
14 days
forecast
forecast
| Great Falls |
weather in
January
January
| Great Falls |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 60°F. At the same time the lowest night temperature was -4°F. Daily and nightly averages during December were 41.1°F and 31.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Great Falls in December is 0.3 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 9.3 mph It makes December one of the most 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: 5.0.
Best time for vacation in Great Falls
Great Falls on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Great Falls
Local time: 04:14
January 13, tuesday
0600
52°F
NE
14 mph
14 mph
0900
54°F
E
12 mph
12 mph
1200
59°F
E
17 mph
17 mph
1500
64°F
SE
14 mph
14 mph
1800
48°F
S
4 mph
4 mph
2100
43°F
NE
1 mph
1 mph
January 14, wednesday
0000
39°F
N
2 mph
2 mph
0300
36°F
NE
5 mph
5 mph
