Adams County Climate
Adams County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
50.8°F
Annual Precip
41.2"
Annual Snowfall
28.0"
Extreme Heat Days
17
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
3,175
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Adams County
Climate Verdict
Adams County has a mild, with an average annual temperature of 50.8°F, moderately wet with 41.2 inches of annual precipitation, rare extreme heat with only 16.55 days above 90°F annually, moderate snowfall of 28.0 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.5°F. summers are warm — July averages 73.6°F. The 48°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Adams County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Adams County closely matches the Indiana statewide average temperature of 52.4°F, it is somewhat drier than average for Indiana.
Climate Profile
About Adams County Weather
A Classic Midwestern Humid Continental Climate
Adams County maintains a cooler-than-average profile with an annual mean of 50.8°F, sitting below the national median. This humid continental climate experiences distinct seasonal swings characteristic of the Midwest region.
Cooler Than the Indiana Average
At 50.8°F, the county sits 1.4 degrees below the Indiana state average of 52.2°F. It ranks among the cooler tiers of Indiana's 92 counties for overall annual temperature.
Wetter and Warmer Than Northern Neighbors
Its 41.2 inches of annual precipitation exceeds neighbor Allen County's 38.5 inches. Temperatures here track closely with other northeast Indiana border counties, though they remain lower than the state average.
Deep Snow and Summer Heat
Residents face 17 extreme heat days above 90°F during the 73.6°F July average. Winters bring a significant 28.0 inches of snowfall and January lows averaging 25.5°F.
Prepare for Snow and Heat Swings
High annual snowfall and 17 extreme heat days require robust insulation and reliable snow removal equipment. Budget for higher heating costs during the 28.2°F winter months.
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.