Columbus (MT) Weather & Climate: Best Time to Visit

Visitors to Columbus can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 31°C (88°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 2°C (36°F).

At night, temperatures range from around 12°C (54°F) in July to -11°C (12°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Columbus tends toward drier weather patterns, receiving approximately 386 mm (15 in) of rain/snow per year. Columbus can be quite wet during May, receiving approximately 87 mm (3.4 in) of precipitation over 14 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 12 mm (0.5 in) of precipitation spread across 5 snowy days. For more details, please visit our Columbus Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Columbus can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is moderate throughout the year in Columbus.

The city experiences its highest humidity in December, reaching 61%. In August, the humidity drops to its lowest level at 45%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year