Wisconsin Dells Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Wisconsin Dells, Wisconsin during each month of the year.
The average high and low temperatures are listed below monthly and annually for this popular vacation spot, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Wisconsin Dells, scroll down farther. There are also monthly and yearly counts of days with cold weather.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 26 | 7 | January | -3 | -14 |
| 30 | 8 | February | -1 | -13 |
| 44 | 21 | March | 7 | -6 |
| 56 | 33 | April | 13 | 0 |
| 70 | 46 | May | 21 | 8 |
| 79 | 56 | June | 26 | 13 |
| 84 | 60 | July | 29 | 16 |
| 81 | 57 | August | 27 | 14 |
| 74 | 49 | September | 24 | 10 |
| 60 | 37 | October | 16 | 3 |
| 44 | 25 | November | 7 | -4 |
| 32 | 17 | December | 0 | -9 |
| 57 | 35 | Year | 14 | 1 |
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 26 | 8 | January | -3 | -13 |
| 31 | 11 | February | 0 | -12 |
| 43 | 22 | March | 6 | -6 |
| 57 | 33 | April | 14 | 1 |
| 69 | 45 | May | 21 | 7 |
| 79 | 56 | June | 26 | 13 |
| 83 | 60 | July | 28 | 15 |
| 81 | 57 | August | 27 | 14 |
| 73 | 49 | September | 23 | 9 |
| 60 | 37 | October | 15 | 3 |
| 44 | 26 | November | 7 | -3 |
| 32 | 15 | December | 0 | -9 |
| 57 | 35 | Year | 14 | 2 |
Days of Hot Weather in Wisconsin Dells
The self-proclaimed "Waterpark Capital of the World" enjoys moderately hot summers. Typically temperatures on half the days peak in the 80s Fahrenheit, while ten days a summer reach into the 90s. Temperatures of 100 degrees (38 °C) or more on average have happened just twice a decade.
| 70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
|---|---|---|---|
| January | 0 | 0 | 0 |
| February | 0 | 0 | 0 |
| March | 1 | 0 | 0 |
| April | 5 | 1 | 0 |
| May | 16 | 6 | 1 |
| June | 26 | 15 | 2 |
| July | 30 | 22 | 4 |
| August | 29 | 19 | 3 |
| September | 20 | 9 | 1 |
| October | 6 | 1 | 0 |
| November | 1 | 0 | 0 |
| December | 0 | 0 | 0 |
| Year | 133 | 72 | 10 |
How Often Wisconsin Dells Has Cold Temperatures
Freezing temperatures can show up at the Dells in any month but June, July and August. Wisconsin Dells normally has 168 frosty nights a year, with 26 of those dropping to 0 °F or below.
On an average of 63 days annually the thermometer here never rises above freezing. Days that chilly can occur from November to April. For most of January in particular the temperature remains below freezing.
| 0 °F -18 °C |
10 °F -12 °C |
20 °F -8 °C |
|
|---|---|---|---|
| January | 11 | 17 | 24 |
| February | 8 | 14 | 21 |
| March | 2 | 5 | 14 |
| April | 0 | 0 | 2 |
| May | 0 | 0 | 0 |
| June | 0 | 0 | 0 |
| July | 0 | 0 | 0 |
| August | 0 | 0 | 0 |
| September | 0 | 0 | 0 |
| October | 0 | 0 | 1 |
| November | 0 | 2 | 9 |
| December | 5 | 11 | 20 |
| Year | 26 | 49 | 91 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.