Weather history and climate summary information is available for the following locations:
- LaCrosse
- Madison
- Milwaukee
Warmest October Days
The warmest October days in Wisconsin are:
| LaCrosse, Wisconsin | 1963 | 93.4°F |
| LaCrosse, Wisconsin | 1976 | 91.9°F |
| LaCrosse, Wisconsin | 1997 | 91.4°F |
| Madison, Wisconsin | 1963 | 90.3°F |
| Madison, Wisconsin | 1976 | 90°F |
Coldest October Days
The coldest October days in Wisconsin were:
| Madison, Wisconsin | 1988 | 12.9°F |
| LaCrosse, Wisconsin | 1988 | 14°F |
| Madison, Wisconsin | 1952 | 14.4°F |
| Madison, Wisconsin | 1976 | 14.9°F |
| Madison, Wisconsin | 1980 | 16°F |
Wettest October Days
The wettest single days in October occurred:
| Milwaukee, Wisconsin | 1991 | 2.4 inches |
| Madison, Wisconsin | 1984 | 2.1 inches |
| Milwaukee, Wisconsin | 1984 | 1.9 inches |
| Madison, Wisconsin | 2001 | 1.9 inches |
| Milwaukee, Wisconsin | 1959 | 1.9 inches |