Louisiana has hot, humid summers and mild winters: NOAA's 1991–2020 normals for New Orleans International Airport give highs of 91.3–91.4°F in July and August and 62.5°F in January, with June the wettest month at 7.62 inches. Baton Rouge and Lafayette run similar. Choose by activity; we have no verified dataset for crowds, hurricane-season risk or prices.
Month-by-month climate table
| Month | Normal high | Normal low | Normal precipitation | Normal snowfall | Verified notes |
|---|---|---|---|---|---|
| January | 62.5°F | 46.1°F | 5.18 in | 0.0 in | State sales tax on lodging rose to 5% on Jan 1, 2025 |
| February | 66.4°F | 49.7°F | 4.13 in | 0.0 in | Mardi Gras Day is Feb 9, 2027 |
| March | 72.3°F | 55.3°F | 4.36 in | 0.0 in | — |
| April | 78.5°F | 61.7°F | 5.22 in | 0.0 in | — |
| May | 85.3°F | 69.0°F | 5.64 in | 0.0 in | — |
| June | 90.0°F | 74.7°F | 7.62 in | 0.0 in | — |
| July | 91.4°F | 76.5°F | 6.79 in | 0.0 in | — |
| August | 91.3°F | 76.6°F | 6.91 in | 0.0 in | — |
| September | 88.1°F | 73.5°F | 5.11 in | 0.0 in | — |
| October | 80.6°F | 64.3°F | 3.70 in | 0.0 in | — |
| November | 71.2°F | 53.7°F | 3.87 in | 0.0 in | Celebration in the Oaks opens Nov 27 or 28 (sources differ) |
| December | 64.8°F | 48.4°F | 4.82 in | 0.0 in | — |
Source: NOAA NCEI U.S. Climate Normals 1991–2020, New Orleans International Airport (USW00012916), retrieved October 20, 2026. Normals are 30-year averages; actual weather varies. Notes are from the Louisiana Department of Revenue and New Orleans event pages.
New Orleans vs Baton Rouge vs Lafayette
| Station | January high / low | July high / low | Wettest month | Snowfall |
|---|---|---|---|---|
| New Orleans | 62.5°F / 46.1°F | 91.4°F / 76.5°F | June (7.62 in) | none in the normals |
| Baton Rouge | 62.3°F / 41.6°F | 91.9°F / 73.8°F | January (6.36 in) | 0.2 in in December |
| Lafayette | 62.2°F / 43.5°F | 91.5°F / 75.1°F | June (7.09 in) | not reported |
How to choose your month
- Warmest: June–September (New Orleans highs 88.1–91.4°F).
- Coolest: December–February (New Orleans highs 62.5–66.4°F).
- Wettest: June (7.62 inches), August (6.91) and July (6.79).
Limits of this guide
Normals describe typical conditions, not forecasts, and we have no verified dataset for storm risk, event dates, crowds or prices by month, so this page makes no such claims. Use the National Weather Service for forecasts.