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 May occurred:
| Watertown, South Dakota | 1948 | 120.2°F |
| Palm Springs, California | 1983 | 115.9°F |
| Palm Springs, California | 2012 | 115°F |
| Palm Springs, California | 2000 | 114.3°F |
| Blythe, California | 1983 | 114.1°F |
The single coldest days in May occurred:
| Barrow, Alaska | 1984 | -18.9°F |
| Barrow, Alaska | 1992 | -16.1°F |
| Barrow, Alaska | 2001 | -16.1°F |
| Barter Island, Alaska | 1964 | -15°F |
| Barrow, Alaska | 1948 | -14.6°F |
The wettest single days in May occurred:
| Melbourne, Florida | 1995 | 14.8 inches |
| New Orleans, Louisiana | 1973 | 13.8 inches |
| Tallahassee, Florida | 1973 | 13.8 inches |
| Meridian, Mississippi | 1973 | 13.8 inches |
| Lake Charles, Louisiana | 1980 | 13.4 inches |