Weather history and climate summary information is available for the following locations:
- Alamosa
- Buckley
- Colorado Springs
- Grand Junction
- La Junta
- Pueblo Memorial
Warmest December Days
The warmest December days in Colorado are:
| La Junta, Colorado | 1980 | 80.1°F |
| Pueblo Memorial, Colorado | 1964 | 77°F |
| La Junta, Colorado | 1981 | 75.9°F |
| Pueblo Memorial, Colorado | 1955 | 75.9°F |
| La Junta, Colorado | 2007 | 75.9°F |
Coldest December Days
The coldest December days in Colorado were:
| Alamosa, Colorado | 1978 | -42.2°F |
| Alamosa, Colorado | 1990 | -33.2°F |
| Alamosa, Colorado | 2007 | -33°F |
| Alamosa, Colorado | 1991 | -27.9°F |
| Alamosa, Colorado | 1974 | -27.8°F |
Wettest December Days
The wettest single days in December occurred:
| Buckley, Colorado | 1982 | 1.5 inches |
| La Junta, Colorado | 1983 | 0.9 inches |
| Buckley, Colorado | 2006 | 0.9 inches |
| Colorado Springs, Colorado | 1992 | 0.9 inches |
| La Junta, Colorado | 2006 | 0.8 inches |