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Saginaw County Climate

Saginaw County, Michigan

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec47.7°AVG °F

Avg Annual Temp

47.7°F

Annual Precip

33.5"

Annual Snowfall

44.9"

Extreme Heat Days

9

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
2.1"
1.9"
2.0"
3.4"
3.6"
3.4"
3.4"
3.8"
2.6"
3.0"
2.5"
1.9"
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

2,637

Supports most vegetables & fruits

Last spring frost (32°F): 04/29
First fall frost (32°F): 10/17

Seasonal Overview

Comfort ZoneSpring34°58°8.9"Summer68°71°10.6"Fall39°62°8.1"Winter23°29°5.9"20°40°60°80°100°

National Comparison

Warmer than 22% of US counties
Wetter than 32% of US counties
More seasonal variation than 78% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Saginaw County

Climate Verdict

Saginaw County has a cool, averaging 47.7°F annually, moderate rainfall of 33.5 inches per year, rare extreme heat with only 8.933333333333334 days above 90°F annually, moderate snowfall of 44.9 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 22.6°F. summers are warm — July averages 71.4°F. The 49°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.

Regional Context

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

Climate Profile

About Saginaw County Weather

Moderate temperatures for the Great Lakes region

Saginaw County’s annual average of 47.7°F is closer to the national median than its northern neighbors. Its 33.5 inches of precipitation closely matches the Michigan state average of 34.5 inches.

Warmer than the Michigan state average

At 47.7°F, Saginaw County is 2 degrees warmer than the statewide average of 45.7°F. This reflects its southern-central positioning within the state's geography.

Mirroring the climate of Shiawassee County

Saginaw shares an identical 47.7°F annual average with neighbor Shiawassee County. Both counties experience similar seasonal swings, though Saginaw sees slightly fewer extreme heat days at 9 per year.

Hotter summers and moderate snowfall

July averages 71.4°F with 9 days exceeding 90°F, making for a warm growing season. Winters are less severe than the north, with 44.9 inches of snow and January averages of 22.6°F.

Balanced utility needs for all seasons

Residents should plan for both active summer cooling and winter heating due to the 49-degree seasonal temperature swing. The 44.9 inches of snow is manageable with standard equipment, but the 9 days of 90°F heat make AC a standard comfort.

Frequently Asked Questions

What is the average temperature in Saginaw County?
The average annual temperature in Saginaw County, MI is 47.7°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Saginaw County get?
Saginaw County receives an average of 33.5 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 Saginaw County?
Yes, Saginaw County receives an average of 44.9 inches of snowfall per year according to NOAA climate normals.
How hot does Saginaw County get in summer?
The average summer temperature (June-August) in Saginaw County is 69.5°F. The county experiences an average of 9 days per year above 90°F.
How cold are winters in Saginaw County?
The average winter temperature (December-February) in Saginaw County is 25.2°F. January, typically the coldest month, averages 22.6°F.

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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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