Decatur County Climate
Decatur County, Kansas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.1°F
Annual Precip
21.5"
Annual Snowfall
23.0"
Extreme Heat Days
55
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,471
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Decatur County
Climate Verdict
Decatur County has a mild, with an average annual temperature of 52.1°F, semi-arid conditions with only 21.5 inches of annual precipitation, occasional hot days — 55.1 per year above 90°F, moderate snowfall of 23.0 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 28.8°F. summers are warm — July averages 77.4°F. The 49°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Decatur County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Decatur County closely matches the Kansas statewide average temperature of 54.8°F, it is also noticeably drier, receiving 8.8 inches less precipitation than the state average.
Climate Profile
About Decatur County Weather
Cool High Plains Living
Decatur's 52.1°F average temperature sits below the national median. This northwestern county experiences a semi-arid climate with only 21.5 inches of precipitation.
Cooler and Drier Than Kansas
The county is 2.7 degrees cooler than the Kansas state average. It is also one of the driest counties in the state, receiving 9 inches less rain than average.
Icy Winters Among Neighbors
Decatur experiences much harsher winters than southern counties, recording 23 inches of annual snow. It is drier and snowier than Doniphan County to the east.
Drastic Seasonal Shifts
January is cold with a 28.8°F average, while July heats up to 77.4°F. Despite the cooler overall average, the county still sees 55 days of 90-degree heat.
Winterize for Heavy Snow
Residents need heavy-duty winter gear and snow removal tools for the 23-inch annual average. Low rainfall also makes water-conscious landscaping a necessity for homeowners.
Frequently Asked Questions
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Track your own weather in Decatur 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.