Wisconsin Dells (WI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wisconsin Dells.
Climate overview of Wisconsin Dells
The climate in Wisconsin Dells, Wisconsin, United States of America, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to -3°C (27°F) in January.
Wisconsin Dells sees a moderate amount of rain/snowfall, totalling around 996 mm (39 in) per year. It experiences a distinct dry season from January to February, with warm summers and very cold winters, creating some seasonal variation. The most sunshine falls in July, with an average of 10.3 hours of daily sunshine.
Wisconsin Dells Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wisconsin Dells - and find the best time to visit.
Monthly Temperature in Wisconsin Dells
In Wisconsin Dells, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a very cold -3°C (27°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -14°C (7°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Wisconsin Dells
On average, Wisconsin Dells receives a reasonable amount of rain/snowfall, with an annual precipitation of 996 mm (39 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives high rainfall, averaging 135 mm (5.3 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month January brings less snowfall, with 32 mm (1.3 in) over 9 snowy days. For more details, please visit our Wisconsin Dells Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Wisconsin Dells
Seasonal changes in sunshine hours are quite dramatic in Wisconsin Dells. While July receives considerable daily sunshine with up to 10.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Wisconsin Dells by Month
The relative humidity is high throughout the year in Wisconsin Dells.
The city experiences its highest humidity in December, reaching 77%. In May, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Wisconsin Dells
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: A distinct dry season from January to February, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -14°C (7°F).
Frequently asked questions about the climate in Wisconsin Dells
What is the best time to visit Wisconsin Dells?
May, June, July, August and September typically offer the most optimal weather in Wisconsin Dells. In contrast, January, February, March, November and December tend to have less optimal conditions. Wisconsin Dells has a distinct dry season from January to February, with warm summers and very cold winters.
What temperatures can I expect in Wisconsin Dells?
Daytime highs range from -3°C (27°F) in January to 28°C (82°F) in July. Nighttime lows range from -14°C (7°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Wisconsin Dells get?
Annual rainfall is around 996 mm (39 in). June is the wettest month with 135 mm (5.3 in), while January is the driest with 32 mm (1.3 in).
How sunny is Wisconsin Dells?
Wisconsin Dells receives around 2,454 hours of sunshine per year. July is the sunniest month with 308 hours, while December is the cloudiest with just 107 hours. Overall, Wisconsin Dells enjoys abundant sunshine.
Wisconsin Dells 3-Day Forecast
Wisconsin Dells (WI) 3-Day Forecast
Wisconsin Dells on the map
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