Dunn County Climate
Dunn County, Wisconsin
Avg Annual Temp
44.2°F
Annual Precip
34.4"
Annual Snowfall
40.9"
Extreme Heat Days
7.8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Dunn County Weather
Cooler than the National Average
Dunn County maintains an annual average temperature of 44.2°F, which sits nearly 10 degrees below the national median. This continental climate is defined by sharp seasonal shifts and a significant departure from warmer southern US regions.
A Typical Wisconsin Profile
The county's 44.2°F average temperature mirrors the state average of 44.4°F very closely. Its annual precipitation of 34.4 inches almost perfectly matches the statewide baseline, making it a representative example of central Wisconsin weather.
Slightly Drier Than Its Neighbors
Dunn County sees 34.4 inches of precipitation, which is slightly higher than neighboring Eau Claire’s 33.6 inches. However, it receives 13 fewer inches of snow annually than Eau Claire, suggesting a less intense winter moisture pattern.
Cold Winters and Brief Heat
Winters are harsh with a January average of 14.3°F and 40.9 inches of total snowfall. Summers offer relief with a July average of 70.6°F, though residents typically face 8 days per year where temperatures exceed 90°F.
Prepare for Deep Freezes
Heating systems must handle winter averages of 17.7°F to ensure home safety during the long cold season. While extreme heat is limited to about a week, air conditioning remains a valuable asset for the humid July peaks.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.