weatherbycounty

Madison County Climate

JanFebMarAprMayJunJulAugSepOctNovDec51.8°AVG °F

Avg Annual Temp

51.8°F

Annual Precip

43.0"

Annual Snowfall

20.2"

Extreme Heat Days

15

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
3.0"
2.5"
3.2"
4.2"
4.5"
5.3"
4.4"
3.4"
3.1"
3.2"
3.5"
3.0"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6a

Minimum winter temperature range for plant survival

Growing Degree Days

3,331

Supports most vegetables & fruits

Last spring frost (32°F): 04/24
First fall frost (32°F): 10/23

Seasonal Overview

Comfort ZoneSpring40°62°11.8"Summer71°74°13.0"Fall42°66°9.7"Winter27°32°8.4"20°40°60°80°100°

National Comparison

Warmer than 39% of US counties
Wetter than 53% of US counties
More seasonal variation than 70% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Madison County

Climate Verdict

Madison County has a mild, with an average annual temperature of 51.8°F, moderately wet with 43.0 inches of annual precipitation, rare extreme heat with only 15.399999999999999 days above 90°F annually, moderate snowfall of 20.2 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 26.8°F. summers are warm — July averages 73.8°F. The 47°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Madison County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Madison County closely matches the Indiana statewide average temperature of 52.4°F.

Climate Profile

About Madison County Weather

Typical Midwestern Temperature Profile

Madison County averages 51.8°F annually, sitting right near the national median. It receives 43.0 inches of precipitation, aligning with typical East Coast and Midwest levels.

Mirroring the Indiana State Average

The county’s 51.8°F average is almost identical to the Indiana state average of 52.2°F. It represents a middle-ground climate for the state.

Consistent with Central Indiana Neighbors

Madison County tracks closely with Marion County, though it is slightly cooler and receives about three fewer inches of snow. Its 43.0 inches of rain is just below the state average.

Cold Januarys and Steamy Julys

Winters feature 20.2 inches of snow and a January average of 26.8°F. Summer peaks in July with an average of 73.8°F and 15 days of extreme heat.

Balanced Seasonal Home Prep

Residents need a mix of winter gear for 20 inches of snow and efficient AC for 15 days of 90°F heat. All-season tires are recommended for the 29.6°F winter average.

Frequently Asked Questions

What is the average temperature in Madison County?
The average annual temperature in Madison County, IN is 51.8°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Madison County get?
Madison County receives an average of 43.0 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Madison County?
Yes, Madison County receives an average of 20.2 inches of snowfall per year according to NOAA climate normals.
How hot does Madison County get in summer?
The average summer temperature (June-August) in Madison County is 72.3°F. The county experiences an average of 15 days per year above 90°F.
How cold are winters in Madison County?
The average winter temperature (December-February) in Madison County is 29.6°F. January, typically the coldest month, averages 26.8°F.

Track your own weather in Madison County

Ambient Weather personal weather stations give you hyperlocal climate data.

Shop Weather Stations →

Sponsored

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.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
← Back to Indiana