Weather history and climate summary information is available for the following locations:
- Alexandria
- Lafayette
- Lake Charles
- Monroe
- New Orleans
- Shreveport
Warmest March Days
The warmest March days in Louisiana are:
| Shreveport, Louisiana | 1974 | 91°F |
| Monroe, Louisiana | 1974 | 91°F |
| Shreveport, Louisiana | 1946 | 90.3°F |
| Shreveport, Louisiana | 1955 | 90.3°F |
| Monroe, Louisiana | 1946 | 90.3°F |
Coldest March Days
The coldest March days in Louisiana were:
| Shreveport, Louisiana | 1943 | 16.3°F |
| Shreveport, Louisiana | 1996 | 16.9°F |
| Shreveport, Louisiana | 2002 | 17.1°F |
| Monroe, Louisiana | 1943 | 17.4°F |
| Monroe, Louisiana | 2002 | 18°F |
Wettest March Days
The wettest single days in March occurred:
| Alexandria, Louisiana | 1995 | 12 inches |
| Lafayette, Louisiana | 1995 | 10.9 inches |
| Lake Charles, Louisiana | 1973 | 7.9 inches |
| Shreveport, Louisiana | 1973 | 7.9 inches |
| New Orleans, Louisiana | 1973 | 7.5 inches |