Grant County Climate
Grant County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
50.4°F
Annual Precip
41.8"
Annual Snowfall
24.5"
Extreme Heat Days
14
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,119
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Grant County
Climate Verdict
Grant County has a mild, with an average annual temperature of 50.4°F, moderately wet with 41.8 inches of annual precipitation, rare extreme heat with only 14.2 days above 90°F annually, moderate snowfall of 24.5 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.4°F. summers are warm — July averages 73.2°F. The 48°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Grant County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Grant County closely matches the Indiana statewide average temperature of 52.4°F, it is somewhat drier than average for Indiana.
Climate Profile
About Grant County Weather
Cooler Temperatures and Balanced Precipitation
Grant County averages 50.4°F annually, which is over three degrees cooler than the national median of 53.8°F. The county experiences a typical humid continental climate with four distinct and well-defined seasons.
Below the Indiana Temperature Average
The county's average temperature of 50.4°F sits below the Indiana state average of 52.2°F. Precipitation is also slightly lower than the state mean, with 41.8 inches of annual rainfall compared to 43.9 inches.
Moderate Snowfall Compared to Northern Neighbors
Grant County sees 24.5 inches of snow, which is significantly less than Elkhart’s 41 inches but more than southern neighbors like Franklin. Its 14 extreme heat days are standard for central Indiana counties.
Temperate Summers and Bracing Winters
Summers are manageable with a July average of 73.2°F and two weeks of extreme heat. Winters are chilly, averaging 28.0°F from December to February with two feet of snow distributed throughout the season.
Seasonal Maintenance for a Four-Season Climate
Residents should plan for a balanced climate by prepping snow shovels for the 24.5-inch winter and checking AC units for the 14 days of summer heat. Home gardens benefit from the consistent 41.8 inches of annual precipitation.
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.