Atchison (KS) Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to chilly in Atchison. On average, daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 3°C (37°F) in January.

Nighttime temperatures range from 20°C (68°F) in July to -8°C (18°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Atchison has a moderate amount of precipitation, averaging 945 mm (37 in) of rain/snowfall annually. The seasons in Atchison bring significant changes in precipitation. The wettest month, May, receives high rainfall, with an average of 134 mm (5.3 in) of precipitation. This rainfall is distributed across 13 rainy days.

In contrast, the driest month, January, experiences much less snow/rainfall, totaling 16 mm (0.6 in) over 5 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Atchison Precipitation page.

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

The average number of days each month with precipitation

In Atchison, summer days are longer and more sunny, with daily sunshine hours peaking at 10.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.9 hours per average 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 high throughout the year in Atchison.

The city experiences its highest humidity in September, reaching 71%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year