Weather in Great Falls in December
The weather in Great Falls in December is extremely cold, when degrees are between -8 and 3 and there are 8 days of rain and 10 days of snow in average. Therefore, if you are planning a trip to Great Falls in December, warm clothes and gloves are highly recommended.
Avg Temp
(-8°) - 3°
Avg Rainy Days
8
Avg Dry Days
23
Avg Snow Days
10
Weather Facts - Great Falls in December
* The warmest temperature recorded in in December is 16°C
* The coldest temperature recorded in Great Falls in December is (-37°C)
* The average rainfall in Great Falls in December is 15 mm