Atchison County Climate
Atchison County, Missouri
Avg Annual Temp
51.1°F
Annual Precip
—
Annual Snowfall
—
Extreme Heat Days
25.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Precipitation data coming soon
Seasonal Overview
National Comparison
Data pending
Climate Profile
About Atchison County Weather
Below the National Average Temperature
Atchison County's annual average of 51.1°F is roughly two degrees cooler than the national median. This northern outpost experiences a more brisk climate than much of the central United States.
Missouri's Coldest Regional Pocket
The county ranks among the coldest in the state, sitting nearly four degrees below the Missouri average of 54.9°F. Its far northwest position exposes it to cooler continental air masses.
The State's Cooler Northwest Corner
Atchison is the coolest among its regional peers, averaging 0.5 degrees less than Adair County. While local precipitation data is limited, the temperature profile remains consistently lower than central Missouri.
Frigid Winters and Sunny Summers
January is particularly cold here with an average temperature of 24.2°F. Despite the northern latitude, the county still records 26 days of extreme heat above 90°F each summer.
Winter Resilience and Heat Prep
The low winter average of 26.8°F requires heavily insulated housing and cold-weather gear. Even in this cooler region, residents need functional air conditioning for the 26 days of extreme summer heat.
Frequently Asked Questions
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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.