Weather history and climate summary information is available for the following locations:
- Atlantic City
- Newark
- Wrightstown
Warmest May Days
The warmest May days in New Jersey are:
| Newark, New Jersey | 1996 | 99°F |
| Newark, New Jersey | 1987 | 98.1°F |
| Newark, New Jersey | 1992 | 96.1°F |
| Newark, New Jersey | 2010 | 95°F |
| Atlantic City, New Jersey | 1987 | 95°F |
Coldest May Days
The coldest May days in New Jersey were:
| Atlantic City, New Jersey | 1981 | 25.9°F |
| Atlantic City, New Jersey | 1978 | 25.9°F |
| Atlantic City, New Jersey | 1992 | 28.9°F |
| Atlantic City, New Jersey | 2010 | 30°F |
| Atlantic City, New Jersey | 1987 | 30.9°F |
Wettest May Days
The wettest single days in May occurred:
| Wrightstown, New Jersey | 2009 | 11.9 inches |
| Newark, New Jersey | 1979 | 4.2 inches |
| Wrightstown, New Jersey | 1982 | 2.9 inches |
| Wrightstown, New Jersey | 1984 | 2.8 inches |
| Wrightstown, New Jersey | 1968 | 2.8 inches |