Weather history and climate summary information is available for the following locations:
- Biloxi
- Colombus
- Jackson
- Meridian
Warmest September Days
The warmest September days in Mississippi are:
| Jackson, Mississippi | 2000 | 106°F |
| Meridian, Mississippi | 1990 | 105.1°F |
| Jackson, Mississippi | 1980 | 104°F |
| Meridian, Mississippi | 1980 | 102.9°F |
| Jackson, Mississippi | 1990 | 102.9°F |
Coldest September Days
The coldest September days in Mississippi were:
| Colombus, Mississippi | 1967 | 37.4°F |
| Colombus, Mississippi | 1942 | 40.3°F |
| Meridian, Mississippi | 1983 | 41°F |
| Jackson, Mississippi | 1982 | 41°F |
| Meridian, Mississippi | 1999 | 41°F |
Wettest September Days
The wettest single days in September occurred:
| Jackson, Mississippi | 2011 | 10.7 inches |
| Jackson, Mississippi | 1974 | 8 inches |
| Biloxi, Mississippi | 1979 | 7.4 inches |
| Biloxi, Mississippi | 1998 | 7.3 inches |
| Meridian, Mississippi | 1988 | 5.2 inches |