Weather history and climate summary information is available for the following locations:
- Atlantic City
- Newark
- Wrightstown
Warmest September Days
The warmest September days in New Jersey are:
| Wrightstown, New Jersey | 1980 | 100°F |
| Wrightstown, New Jersey | 1983 | 100°F |
| Wrightstown, New Jersey | 1953 | 100°F |
| Newark, New Jersey | 1993 | 99°F |
| Atlantic City, New Jersey | 2010 | 99°F |
Coldest September Days
The coldest September days in New Jersey were:
| Atlantic City, New Jersey | 1975 | 34°F |
| Atlantic City, New Jersey | 1979 | 34°F |
| Atlantic City, New Jersey | 1978 | 34.9°F |
| Wrightstown, New Jersey | 1963 | 35.1°F |
| Atlantic City, New Jersey | 1992 | 35.1°F |
Wettest September Days
The wettest single days in September occurred:
| Newark, New Jersey | 1999 | 5.9 inches |
| Wrightstown, New Jersey | 1944 | 4.2 inches |
| Wrightstown, New Jersey | 1978 | 3.9 inches |
| Wrightstown, New Jersey | 1989 | 3.9 inches |
| Atlantic City, New Jersey | 1973 | 3.9 inches |