Atchison County Climate
Atchison County, Kansas
Avg Annual Temp
54.2°F
Annual Precip
36.2"
Annual Snowfall
16.6"
Extreme Heat Days
38.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Atchison County Weather
A classic continental climate profile
Atchison County averages 54.2°F annually, aligning closely with the national median for temperate zones. The area receives 36.2 inches of precipitation, providing a consistent moisture profile throughout the year.
Cooler and snowier than the Kansas norm
The county's average temperature of 54.2°F sits just below the state average of 54.8°F. Atchison is significantly snowier than the average Kansas county, recording 16.6 inches of snowfall annually.
Warmer than northern neighbor Brown County
Atchison County is roughly 1.3 degrees warmer on average than Brown County to its northwest. Despite this, both counties share a similar risk for extreme heat, with Atchison recording 38 days over 90°F.
Brisk winters and humid July peaks
Winters are cold with a January average of 27.3°F and over 16 inches of snow. July brings relief from the chill as temperatures climb to an average of 78.4°F during the peak of summer.
Winterize early and expect snow
Residents should prioritize insulation and winter weather gear to handle the 16.6 inches of annual snow. With 38 extreme heat days, summer cooling remains a necessity even in this cooler part of the state.
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.