Louisiana climate
World Climates covers 4 places in Louisiana. By annual mean temperature, the warmest is New Orleans (21 °C70 °F) and the coolest is Shreveport (19 °C66 °F). The wettest is Lafayette with 1,583 mm62 in of precipitation per year, the driest Shreveport with 1,275 mm50 in.
The most common climate types (Köppen classification computed from these averages) are humid subtropical (Cfa, 4 places).
The highest monthly average high is in Shreveport (36 °C96 °F in August); the lowest monthly average low is in Shreveport (2 °C35 °F in January).
Across the places in Louisiana, the months that most often rank as the most comfortable are March, April and November (2, 1 and 4 of 4 places respectively).
Frequently asked questions
Which is the warmest place in Louisiana?
By annual mean temperature, the warmest place in Louisiana is New Orleans at 21 °C70 °F. The coolest is Shreveport at 19 °C66 °F.
Where does it rain the most in Louisiana?
Lafayette gets the most precipitation, 1,583 mm62 in in an average year. The driest place is Shreveport with 1,275 mm50 in.
How many places in Louisiana does this site cover?
World Climates has climate data for 4 places in Louisiana. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.
When is the best time to visit Louisiana?
It depends on the place. Across Louisiana, the months that most often rank as the most comfortable are March, April and November. Check the page of each city for its own best months.
Climate of every place in Louisiana
| Place | Year | Max high | Min low | Precip. |
|---|---|---|---|---|
| New Orleans | 21 | 31 | 8 | 1,534 |
| Baton Rouge | 20 | 32 | 4 | 1,561 |
| Shreveport | 19 | 36 | 2 | 1,275 |
| Lafayette | 20 | 31 | 6 | 1,583 |
Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.
Other cities over 100,000 people
These cities share a NASA POWER grid cell with a larger place, so their averages are shown on that page:
- Metairie → data of New Orleans
Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.