Grundy County Climate
Grundy County, Missouri
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
52.1°F
Annual Precip
39.9"
Annual Snowfall
17.2"
Extreme Heat Days
34
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,623
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Grundy County
Climate Verdict
Grundy County has a mild, with an average annual temperature of 52.1°F, moderate rainfall of 39.9 inches per year, occasional hot days — 34.400000000000006 per year above 90°F, light snow averaging 17.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 24.8°F. summers are warm — July averages 76.9°F. Residents experience a substantial 52°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Grundy County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Grundy County closely matches the Missouri statewide average temperature of 54.9°F, it is somewhat drier than average for Missouri.
Climate Profile
About Grundy County Weather
A Balanced Continental Profile
Grundy County's 52.1°F annual average temperature mirrors the national median for continental climates. The area receives 39.9 inches of precipitation annually, keeping the landscape productive.
Cooler Temperatures in North Missouri
The county's average temperature of 52.1°F is nearly three degrees lower than the Missouri state average of 54.9°F. This cooler profile is typical for counties located in the state's northern third.
Similar to its Northern Peers
Grundy County shares a similar climate with neighboring Harrison and Gentry counties, characterized by cold winters. Its 17.2 inches of snow is typical for the region but high for the state.
Bracing for Cold Januarys
Winter is prominent here, with an average December-to-February temperature of just 28.0°F. Summer peaks in July at 76.9°F, bringing about 34 days of temperatures exceeding 90°F.
Winter Preparedness is Key
Residents should prepare for 17 inches of snow and January lows of 24.8°F with proper home weatherization. Summertime outdoor activities require planning around the month's worth of 90-degree days.
Frequently Asked Questions
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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.