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Forest County Climate

Forest County, Wisconsin

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec39.7°AVG °F

Avg Annual Temp

39.7°F

Annual Precip

33.2"

Annual Snowfall

77.4"

Extreme Heat Days

0

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.2"
1.1"
1.8"
3.0"
3.7"
4.6"
4.1"
3.3"
3.7"
3.3"
1.9"
1.6"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

4b

Minimum winter temperature range for plant survival

Growing Degree Days

1,541

Favors cool-season crops

Last spring frost (32°F): 05/19
First fall frost (32°F): 09/29

Seasonal Overview

Comfort ZoneSpring26°52°8.4"Summer60°64°12.0"Fall30°55°8.9"Winter12°18°3.9"20°40°60°80°100°

National Comparison

Warmer than 2% of US counties
Wetter than 31% of US counties
More seasonal variation than 87% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Forest County

Climate Verdict

Forest County has a cold, with an average annual temperature of 39.7°F, moderate rainfall of 33.2 inches per year, rare extreme heat with only 0.3 days above 90°F annually, heavy winter snowfall averaging 77.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 11.8°F. summers are pleasantly cool with July averaging 64.2°F. Residents experience a substantial 52°F difference between winter and summer.

Outdoor & Gardening Guidance

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

Regional Context

Forest County is 4.7°F cooler than the Wisconsin statewide average of 44.4°F.

Climate Profile

About Forest County Weather

Deep Into Northern Territory

Forest County is exceptionally cold, with an annual average temperature of only 39.7°F. This is more than 13 degrees below the national median, characterizing a true sub-boreal climate.

Colder and Snowier Than Most

The county sits far below the Wisconsin average temperature of 44.4°F. It is also one of the state's snowiest regions, receiving 77.4 inches annually compared to more moderate totals in the south.

Maximum Snow Load

Forest County's 77.4 inches of snow dwarfs the 40-inch averages found in southern Wisconsin. Its July average of 64.2°F is also significantly lower than the 72°F averages seen in the southern part of the state.

No Heat, All Snow

This county records 0 days per year of extreme heat over 90°F, making it a refuge from summer temperatures. However, winter is intense, with an average temperature of just 15.0°F and heavy, consistent snow.

Focus on Heavy Insulation

Extreme winter preparation is mandatory, as January averages fall to a biting 11.8°F. Residents should prioritize high-capacity snow blowers and ensure homes are rated for significant snow accumulation on roofs.

Frequently Asked Questions

What is the average temperature in Forest County?
The average annual temperature in Forest County, WI is 39.7°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Forest County get?
Forest County receives an average of 33.2 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 Forest County?
Yes, Forest County receives an average of 77.4 inches of snowfall per year according to NOAA climate normals.
How hot does Forest County get in summer?
The average summer temperature (June-August) in Forest County is 62.3°F. The county experiences an average of 0 days per year above 90°F.
How cold are winters in Forest County?
The average winter temperature (December-February) in Forest County is 15.0°F. January, typically the coldest month, averages 11.8°F.

Track your own weather in Forest 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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