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Atchison County Climate

JanFebMarAprMayJunJulAugSepOctNovDec54.2°AVG °F

Avg Annual Temp

54.2°F

Annual Precip

36.2"

Annual Snowfall

16.6"

Extreme Heat Days

38

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.8"
1.2"
1.9"
3.5"
5.2"
4.9"
5.2"
3.8"
3.5"
3.0"
1.8"
1.4"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6a

Minimum winter temperature range for plant survival

Growing Degree Days

4,006

Excellent for heat-loving crops

Last spring frost (32°F): 04/11
First fall frost (32°F): 10/29

Seasonal Overview

Comfort ZoneSpring43°65°10.6"Summer74°78°13.8"Fall43°69°8.4"Winter27°32°3.4"20°40°60°80°100°

National Comparison

Warmer than 48% of US counties
Wetter than 36% of US counties
More seasonal variation than 84% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Atchison County

Climate Verdict

Atchison County has a mild, with an average annual temperature of 54.2°F, moderate rainfall of 36.2 inches per year, occasional hot days — 38.1 per year above 90°F, light snow averaging 16.6 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 27.3°F. summers are warm — July averages 78.4°F. Residents experience a substantial 51°F difference between winter and summer.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Atchison County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Atchison County closely matches the Kansas statewide average temperature of 54.8°F, it is also noticeably wetter, receiving 5.9 inches more precipitation than the state average, the county experiences 20.081190476190486 fewer extreme heat days than the state average.

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.

Frequently Asked Questions

What is the average temperature in Atchison County?
The average annual temperature in Atchison County, KS is 54.2°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Atchison County get?
Atchison County receives an average of 36.2 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Atchison County?
Yes, Atchison County receives an average of 16.6 inches of snowfall per year according to NOAA climate normals.
How hot does Atchison County get in summer?
The average summer temperature (June-August) in Atchison County is 76.4°F. The county experiences an average of 38 days per year above 90°F.
How cold are winters in Atchison County?
The average winter temperature (December-February) in Atchison County is 30.4°F. January, typically the coldest month, averages 27.3°F.

Track your own weather in Atchison County

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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