Nampa Weather & Climate: Best Time to Visit

The climate in Nampa is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a pleasant 21°C (70°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -7°C (19°F).

At night, temperatures range from around 11°C (52°F) in July to -14°C (7°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Nampa receives mid-range precipitation levels, with 697 mm (27 in) annually. Nampa can be quite wet during July, receiving approximately 86 mm (3.4 in) of precipitation over 16 rainy days.

In contrast, during the driest month (March), you will experience much drier conditions, with 40 mm (1.6 in) of precipitation spread across 18 snowy days days. For more details, please visit our Nampa Precipitation page.

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

The average number of days each month with precipitation

Nampa can be enjoyed more throughout the sunniest month of June under a blue sky, with approximately 9.1 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 0.1 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine