Clark County Climate
Clark County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
42.7°F
Annual Precip
34.9"
Annual Snowfall
47.3"
Extreme Heat Days
4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,111
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clark County
Climate Verdict
Clark County has a cool, averaging 42.7°F annually, moderate rainfall of 34.9 inches per year, rare extreme heat with only 3.85 days above 90°F annually, moderate snowfall of 47.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 12.9°F. summers are pleasantly cool with July averaging 68.3°F. Residents experience a substantial 55°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Clark County closely matches the Wisconsin statewide average temperature of 44.4°F.
Climate Profile
About Clark County Weather
A truly cold northern climate
Clark County's average annual temperature of 42.7°F is nearly 11 degrees colder than the national median. This reflects its position in a classic continental zone where winter dominates the calendar.
One of Wisconsin's colder regions
Averaging 42.7°F annually, Clark County is significantly cooler than the state average of 44.4°F. It consistently ranks among the colder third of all Wisconsin counties.
Cooler than neighboring Chippewa
Clark County is a full degree cooler than neighboring Chippewa County to the northwest. However, Clark receives more moisture, with 34.9 inches of annual precipitation compared to the state average of 34.5 inches.
Brisk winters and rare heat
The county sees only 4 days of extreme heat above 90°F, making for very mild summers. Winter brings a sharp chill, with January averages dipping to 12.9°F and annual snowfall reaching 47.3 inches.
Focus on insulation and winter gear
Winter averages of 16.5°F make high-grade home insulation and reliable heating systems a top priority. Outdoor planning should focus on the short growing season, as summer averages only 66.4°F.
Frequently Asked Questions
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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.