Delaware County Climate
Delaware County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
53.7°F
Annual Precip
41.0"
Annual Snowfall
19.4"
Extreme Heat Days
17
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,753
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Delaware County
Climate Verdict
Delaware County has a mild, with an average annual temperature of 53.7°F, moderately wet with 41.0 inches of annual precipitation, rare extreme heat with only 17.4 days above 90°F annually, light snow averaging 19.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 28.6°F. summers are warm — July averages 76.0°F. The 47°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Delaware County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Delaware County closely matches the Indiana statewide average temperature of 52.4°F, it is somewhat drier than average for Indiana.
Climate Profile
About Delaware County Weather
A Balanced Temperate Climate
Delaware County’s 53.7°F average temperature closely follows the national median. The county’s 41 inches of precipitation is slightly lower than the national average for this latitude.
Warmer than the State Average
At 53.7°F, Delaware is 1.5 degrees warmer than the Indiana state average of 52.2°F. It is drier than the typical Indiana county by nearly 3 inches of annual rainfall.
Central Indiana’s Heat Profile
The county experiences 17 days of extreme heat, significantly more than eastern neighbors like Dearborn. It records a moderate 19.4 inches of annual snowfall.
Hot Summers and Snowy Winters
July averages a warm 76.0°F, contributing to the 17 days of temperatures over 90°F. Winter averages 31.4°F and delivers a steady 19.4 inches of snow.
Balanced HVAC Planning Required
Residents must plan for both the 17 extreme heat days and 19.4 inches of snow. A versatile heating and cooling system is necessary to manage the 47.4-degree swing between January and July.
Frequently Asked Questions
What is the average temperature in Delaware County?
How much rain does Delaware County get?
Does it snow in Delaware 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.