Using over 550,000 weather observations from over 300 US weather stations to help you understand what the chance of rain...shine...snow is on any given day
The single hottest days in December occurred:
| Grand Island, Nebraska | 1974 | 105.8°F |
| Oxnard, California | 1958 | 93.4°F |
| Alice, Texas | 1997 | 93.2°F |
| Brownsville, Texas | 1977 | 93°F |
| Fort Myers, Florida | 1987 | 93°F |
The single coldest days in December occurred:
| Northway, Alaska | 1956 | -63°F |
| Fairbanks, Alaska | 1961 | -62°F |
| Northway, Alaska | 1961 | -62°F |
| Delta Junction, Alaska | 1946 | -61.6°F |
| Northway, Alaska | 1949 | -61.1°F |
The wettest single days in December occurred:
| Key West, Florida | 1973 | 18 inches |
| Key West, Florida | 1974 | 18 inches |
| Victoria, Texas | 1986 | 12 inches |
| Tallahassee, Florida | 1982 | 11.8 inches |
| Wheeler Afb., Hawaii | 2008 | 11.7 inches |