Weather history and climate summary information is available for the following locations:
- LaCrosse
- Madison
- Milwaukee
Warmest April Days
The warmest April days in Wisconsin are:
| Madison, Wisconsin | 1980 | 93.9°F |
| LaCrosse, Wisconsin | 1952 | 92.3°F |
| LaCrosse, Wisconsin | 1980 | 91.9°F |
| Milwaukee, Wisconsin | 1980 | 91°F |
| LaCrosse, Wisconsin | 1991 | 91°F |
Coldest April Days
The coldest April days in Wisconsin were:
| Madison, Wisconsin | 1982 | 0°F |
| LaCrosse, Wisconsin | 1982 | 7°F |
| Madison, Wisconsin | 2003 | 10°F |
| Madison, Wisconsin | 1954 | 10°F |
| LaCrosse, Wisconsin | 1954 | 10.4°F |
Wettest April Days
The wettest single days in April occurred:
| LaCrosse, Wisconsin | 1954 | 3.9 inches |
| LaCrosse, Wisconsin | 1975 | 3.3 inches |
| Milwaukee, Wisconsin | 1976 | 3.1 inches |
| Madison, Wisconsin | 2009 | 2.5 inches |
| Milwaukee, Wisconsin | 1993 | 2.4 inches |