Climate averages 1991–2020
New Orleans weather
in March.
A mild, wet month: the 8th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a mild month in New Orleans: daytime highs average 20.6°C and nights cool to about 13.6°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 114 mm of rain on roughly 9 days, which makes March a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average March day.
The nearest other city in this atlas is Metairie (8 km away). In March its highs average 20.8°C, about as warm as New Orleans, with 115 mm of rain.
Among the 498 cities listed in the United States, New Orleans ranks joint 90th of 498 for the warmest March highs and joint 440th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; New Orleans is 5.7°C warmer than that mean.
From March to April, average highs rise by 3.3°C to 23.9°C, and monthly rainfall falls from 114 mm to 99 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
New Orleans climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.9°C9.1°C | 9.1°C | 113 | 9.7 | 10.510 h |
| February | 17.8°C10.7°C | 10.7°C | 108 | 8.9 | 11.111 h |
| March, selected | 20.6°C13.6°C | 13.6°C | 114 | 9.4 | 12.012 h |
| April | 23.9°C17.1°C | 17.1°C | 99 | 8.4 | 12.913 h |
| May | 27.7°C21.1°C | 21.1°C | 91 | 9.2 | 13.614 h |
| June | 30.1°C24.3°C | 24.3°C | 131 | 15.0 | 14.014 h |
| July | 30.8°C25.4°C | 25.4°C | 143 | 17.9 | 13.914 h |
| August | 30.7°C25.4°C | 25.4°C | 159 | 17.3 | 13.213 h |
| September | 28.9°C23.5°C | 23.5°C | 123 | 12.8 | 12.412 h |
| October | 25.2°C18.9°C | 18.9°C | 88 | 8.0 | 11.511 h |
| November | 20.4°C13.6°C | 13.6°C | 83 | 7.3 | 10.711 h |
| December | 17.1°C10.5°C | 10.5°C | 96 | 9.2 | 10.310 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Metairie in MarchUnited States · 8 kmHigh 20.8°C · Low 13.6°C · 115 mm rain
- Gulfport in MarchUnited States · 105 kmHigh 19.8°C · Low 12.9°C · 135 mm rain
- Baton Rouge in MarchUnited States · 120 kmHigh 21.4°C · Low 11.7°C · 118 mm rain
- Lafayette (Louisiana), United States in MarchUnited States · 189 kmHigh 21.4°C · Low 12.1°C · 109 mm rain
- Mobile in MarchUnited States · 212 kmHigh 20.3°C · Low 11.8°C · 119 mm rain
- Jackson in MarchUnited States · 261 kmHigh 19.5°C · Low 8.8°C · 121 mm rain
- Lake Charles in MarchUnited States · 302 kmHigh 21.3°C · Low 12.2°C · 104 mm rain
- Beaumont in MarchUnited States · 388 kmHigh 21.2°C · Low 12.4°C · 99 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for New Orleans) is explained once on the New Orleans year overview and on the Sources, method and limits page.