The highest day temperature in January 2024 was 55°F. The lowest night temperature was -40°F. The average values for day and night temperatures during January were 22.7°F и 14.1°F respectivly.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Great Falls is 0.2 in. It makes january the least rainy month of the year.

The average wind speed in January is 9.3 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Great Falls in January is 4.8 hours.