Weather history and climate summary information is available for the following locations:
- Evansville
- Fort Wayne
- Indianapolis
- South Bend
Warmest December Days
The warmest December days in Indiana are:
| Evansville, Indiana | 1982 | 77°F |
| Indianapolis, Indiana | 1982 | 73.9°F |
| Evansville, Indiana | 2008 | 73°F |
| Evansville, Indiana | 2012 | 73°F |
| Evansville, Indiana | 1998 | 72°F |
Coldest December Days
The coldest December days in Indiana were:
| Indianapolis, Indiana | 1989 | -23.1°F |
| Fort Wayne, Indiana | 1989 | -18°F |
| Indianapolis, Indiana | 1983 | -17°F |
| Fort Wayne, Indiana | 1983 | -16.1°F |
| South Bend, Indiana | 1983 | -15°F |
Wettest December Days
The wettest single days in December occurred:
| Evansville, Indiana | 2001 | 3.4 inches |
| Indianapolis, Indiana | 1990 | 2.7 inches |
| Evansville, Indiana | 2011 | 2.6 inches |
| Fort Wayne, Indiana | 1990 | 2.3 inches |
| Indianapolis, Indiana | 1985 | 2.1 inches |