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Gratiot County Climate

Gratiot County, Michigan

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec47.0°AVG °F

Avg Annual Temp

47.0°F

Annual Precip

34.5"

Annual Snowfall

39.3"

Extreme Heat Days

11

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
2.2"
1.8"
2.1"
3.5"
3.7"
3.6"
3.3"
3.7"
2.7"
3.2"
2.7"
2.0"
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

2,519

Supports most vegetables & fruits

Last spring frost (32°F): 05/01
First fall frost (32°F): 10/13

Seasonal Overview

Comfort ZoneSpring33°57°9.3"Summer67°71°10.6"Fall38°61°8.6"Winter22°28°6.0"20°40°60°80°100°

National Comparison

Warmer than 19% of US counties
Wetter than 33% of US counties
More seasonal variation than 78% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Gratiot County

Climate Verdict

Gratiot County has a cool, averaging 47.0°F annually, moderate rainfall of 34.5 inches per year, rare extreme heat with only 11.1 days above 90°F annually, moderate snowfall of 39.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 22.0°F. summers are warm — July averages 70.8°F. The 49°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

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

Regional Context

Gratiot County closely matches the Michigan statewide average temperature of 45.7°F.

Climate Profile

About Gratiot County Weather

A Typical Upper-Midwest Climate

Gratiot County averages 47.0°F annually, sitting below the national median but representative of the Great Lakes region. The climate offers a traditional four-season cycle with substantial seasonal temperature variation.

Warmer Than the State Median

At 47.0°F, Gratiot is warmer than the Michigan state average of 45.7°F. Its location in the central Lower Peninsula shelters it from the harshest northern temperatures while keeping precipitation at the state norm of 34.5 inches.

Consistent Central Michigan Weather

Gratiot mirrors its central neighbors with 39.3 inches of annual snowfall, which is relatively moderate for Michigan. This consistency makes it a stable agricultural hub compared to the snowier counties to the west.

Warm Summers and Chilly Winters

The July average reaches 70.8°F, and residents experience 11 days of extreme heat per year. Winters are cold but manageable, with a January average of 22.0°F.

Optimize for Seasonal Extremes

Homeowners should prioritize insulation to handle 22°F January lows and ensure air conditioning is serviced for the 11 days of extreme heat. Standard snow removal equipment is sufficient for the 39.3 inches of annual snow.

Frequently Asked Questions

What is the average temperature in Gratiot County?
The average annual temperature in Gratiot County, MI is 47.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Gratiot County get?
Gratiot County receives an average of 34.5 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 Gratiot County?
Yes, Gratiot County receives an average of 39.3 inches of snowfall per year according to NOAA climate normals.
How hot does Gratiot County get in summer?
The average summer temperature (June-August) in Gratiot County is 68.9°F. The county experiences an average of 11 days per year above 90°F.
How cold are winters in Gratiot County?
The average winter temperature (December-February) in Gratiot County is 24.6°F. January, typically the coldest month, averages 22.0°F.

Track your own weather in Gratiot 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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