Louisville (CO) Weather & Climate: Best Time to Visit

Visitors to Louisville can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 32°C (90°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).

At night, temperatures range from around 15°C (59°F) in July to -8°C (18°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Louisville typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 432 mm (17 in). Louisville can be quite wet during May, receiving approximately 67 mm (2.6 in) of precipitation over 12 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/rainy days days. For more details, please visit our Louisville Precipitation page.

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

The average number of days each month with precipitation

Louisville can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 6.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is moderate throughout the year in Louisville.

The city experiences its highest humidity in December, reaching 56%. In July, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year