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Carroll County Climate

JanFebMarAprMayJunJulAugSepOctNovDec52.2°AVG °F

Avg Annual Temp

52.2°F

Annual Precip

40.9"

Annual Snowfall

18.5"

Extreme Heat Days

20

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
2.7"
1.9"
2.9"
3.9"
4.2"
5.0"
4.7"
3.5"
3.3"
3.1"
3.2"
2.4"
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

3,403

Supports most vegetables & fruits

Last spring frost (32°F): 04/22
First fall frost (32°F): 10/17

Seasonal Overview

Comfort ZoneSpring41°63°11.0"Summer71°74°13.3"Fall42°66°9.6"Winter27°32°7.0"20°40°60°80°100°

National Comparison

Warmer than 40% of US counties
Wetter than 48% of US counties
More seasonal variation than 70% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Carroll County

Climate Verdict

Carroll County has a mild, with an average annual temperature of 52.2°F, moderately wet with 40.9 inches of annual precipitation, rare extreme heat with only 19.5 days above 90°F annually, light snow averaging 18.5 inches per year. 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 73.9°F. The 47°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

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

Regional Context

Carroll County closely matches the Indiana statewide average temperature of 52.4°F, it is somewhat drier than average for Indiana.

Climate Profile

About Carroll County Weather

Representative Midwestern Climate Averages

Carroll County mirrors the state average perfectly with an annual temperature of 52.2°F. This humid continental climate offers a representative look at typical Midwestern weather patterns.

Exactly at the State Average

The county matches the Indiana state average of 52.2°F exactly. Its 40.9 inches of precipitation is slightly below the state average of 43.9 inches.

Warmer and Hotter Than Benton

Carroll is significantly warmer than neighbor Benton County, which averages only 49.8°F. It also experiences more extreme heat, with 20 days over 90°F compared to Benton's 13.

Hot Summers with Moderate Snowfall

Summers are hot with 20 days reaching 90°F or more and a July average of 73.9°F. Winters are moderate for the region, with 18.5 inches of snow and a 29.7°F average.

Budget for Summer Cooling Needs

Budget for cooling costs in the summer to manage the 20 extreme heat days. The 18.5 inches of snow requires standard winter preparation but is less demanding than the state's northernmost counties.

Frequently Asked Questions

What is the average temperature in Carroll County?
The average annual temperature in Carroll County, IN is 52.2°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Carroll County get?
Carroll County receives an average of 40.9 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 Carroll County?
Yes, Carroll County receives an average of 18.5 inches of snowfall per year according to NOAA climate normals.
How hot does Carroll County get in summer?
The average summer temperature (June-August) in Carroll County is 72.4°F. The county experiences an average of 20 days per year above 90°F.
How cold are winters in Carroll County?
The average winter temperature (December-February) in Carroll County is 29.7°F. January, typically the coldest month, averages 26.8°F.

Track your own weather in Carroll 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.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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