Weather history and climate summary information is available for the following locations:
- Blytheville
- Fort Smith
- Little Rock
- Texarkana
Warmest December Days
The warmest December days in Arkansas are:
| Texarkana, Arkansas | 1955 | 82.9°F |
| Texarkana, Arkansas | 2005 | 82°F |
| Fort Smith, Arkansas | 1951 | 82°F |
| Texarkana, Arkansas | 1956 | 80.1°F |
| Texarkana, Arkansas | 1984 | 80.1°F |
Coldest December Days
The coldest December days in Arkansas were:
| Blytheville, Arkansas | 1989 | -5.8°F |
| Fort Smith, Arkansas | 1989 | -5.1°F |
| Blytheville, Arkansas | 1963 | -2°F |
| Texarkana, Arkansas | 1989 | -1.1°F |
| Fort Smith, Arkansas | 1983 | -0.9°F |
Wettest December Days
The wettest single days in December occurred:
| Little Rock, Arkansas | 2009 | 6.3 inches |
| Texarkana, Arkansas | 2009 | 4 inches |
| Fort Smith, Arkansas | 1993 | 4 inches |
| Blytheville, Arkansas | 1982 | 3.4 inches |
| Blytheville, Arkansas | 1978 | 3.4 inches |