Frost dates across Louisiana
Typical last spring frost, first fall frost, and USDA zone for 9 Louisiana cities, from 30-year NOAA climate normals. Every date is a 50 percent odds line, not a promise. Pick a city for the full frost window and what is plantable there now.
Not on the list? Any Louisiana ZIP works.
| City | Last spring frost | First fall frost | Season length | Zone |
|---|---|---|---|---|
| New Orleans | Feb 1 | Dec 31 | about 333 days | 9b |
| Baton Rouge | Feb 25 | Nov 26 | about 274 days | 9a |
| Shreveport | Feb 28 | Nov 24 | about 269 days | 8b |
| Lafayette | Feb 13 | Dec 4 | about 294 days | 9a |
| Lake Charles | Mar 2 | Nov 25 | about 268 days | 9a |
| Monroe | Mar 8 | Nov 15 | about 252 days | 8b |
| Alexandria | Feb 27 | Nov 27 | about 273 days | 9a |
| Morgan City | Jan 30 | Jan 1 | about 336 days | 9b |
| Bogalusa | Mar 2 | Nov 23 | about 266 days | 9a |
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