Jennings County Climate
Jennings County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
54.8°F
Annual Precip
49.3"
Annual Snowfall
17.2"
Extreme Heat Days
19
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,789
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Jennings County
Climate Verdict
Jennings County has a mild, with an average annual temperature of 54.8°F, moderately wet with 49.3 inches of annual precipitation, rare extreme heat with only 18.9 days above 90°F annually, light snow averaging 17.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.5°F. summers are warm — July averages 75.2°F. The 44°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Jennings County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Jennings County closely matches the Indiana statewide average temperature of 52.4°F, it is also noticeably wetter, receiving 5.1 inches more precipitation than the state average.
Climate Profile
About Jennings County Weather
Matching the National Median Climate
Jennings County averages 54.8°F annually, placing it right in line with the national median temperature. The climate is humid and temperate, providing a balance between North and South.
Warmer than the Statewide Average
This average is over two degrees warmer than the Indiana state average of 52.2°F. It sits firmly in the warmer southern half of the state's climate rankings.
High Rainfall in the Muscatatuck Region
The county receives 49.3 inches of annual rain, making it wetter than neighbors like Bartholomew. It shares the humid, lush characteristics of the surrounding region.
Humid Summers and Light Snowfall
Summer temperatures average 73.8°F and produce 19 days of heat above 90°F. Winter is relatively mild compared to the north, averaging 34.3°F with 17.2 inches of snow.
Manage High Moisture and Humidity
Effective gutter systems and yard drainage are vital to manage the high 49.3-inch annual precipitation. HVAC systems should be rated for both high humidity and moderate summer heat spikes.
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.