Louisiana frost dates: Last spring and first autumn frost at every NOAA station, 1991-2020
Across Louisiana's 98 NOAA stations with frost dates, the median last spring frost (32°F) runs from January 22 in New Orleans Lakefront Airport to March 30 in Homer; for half of its places it comes after March 2.
- Typical last spring frost
- March 2median of 65 places
- Typical first autumn frost
- November 23median of 65 places
- Earliest last frost
- January 22New Orleans Lakefront Airport
- Latest last frost
- March 30Homer
When is the last frost in Louisiana, town by town?
Each date is NOAA's: "after March 2 in half of years" means the last 32°F night of spring came after March 2 in half of the years 1991-2020. By the 1-in-10 date, the last frost has passed in nine years out of ten.
Find your town in the list, or look up a ZIP code for the stations nearest it.
| Place or station | Last frost (median) | 1 in 10 after | First frost (median) | 1 in 10 before | Growing season | Zone |
|---|---|---|---|---|---|---|
| New Orleans Lakefront Airport | January 22 | February 23 | January 5 | December 13 | 348 days | 9b |
| BoothvilleBoothville Asos | January 23 | February 25 | January 9 | December 18 | 357 days | – |
| New Orleans Audubon | January 24 | February 23 | January 2 | December 5 | 341 days | 9b |
| Buras | January 25 | February 21 | January 4 | December 13 | 346 days | – |
| Morgan City | January 30 | March 5 | January 1 | December 2 | 335 days | 9b |
| New OrleansNew Orleans Airport | January 30 | February 27 | December 31 | December 1 | 333 days | 9b |
| Terrytown3 mi S | February 1 | March 6 | December 31 | December 1 | 330 days | 9b |
| Rockefeller Wildlife Refuge | February 2 | March 4 | December 23 | November 29 | 323 days | 9b |
| Salt Point | February 2 | March 1 | December 26 | November 29 | 326 days | – |
| Hackberry8 mi SSW | February 3 | March 9 | December 24 | November 26 | 323 days | 9b |
| Lsu Citrus Research Station | February 3 | March 2 | December 28 | December 5 | 327 days | – |
| St Bernard | February 4 | March 6 | December 15 | November 23 | 312 days | – |
| Houma | February 5 | March 7 | December 17 | November 23 | 312 days | – |
| Thibodaux4 mi SE | February 5 | March 7 | December 14 | November 19 | 311 days | 9b |
| Galliano | February 8 | March 12 | December 19 | November 20 | 311 days | 9b |
| Carville (2 mi SW) | February 9 | March 10 | December 13 | November 16 | 308 days | 9b |
| Reserve | February 9 | March 11 | December 14 | November 21 | 308 days | – |
| Chalmette | February 10 | March 8 | December 17 | November 21 | 309 days | – |
| Lake Arthur7 mi SW | February 10 | March 8 | December 11 | November 19 | 307 days | 9b |
| Marrero9 mi SSW | February 10 | March 10 | December 12 | November 20 | 306 days | – |
| New Iberia Acadiana Airport | February 10 | March 9 | December 11 | November 17 | 305 days | – |
| Franklin3 mi NW | February 11 | March 11 | December 8 | November 15 | 303 days | 9b |
| LafayetteLafayette Regional Airport | February 13 | March 10 | December 4 | November 13 | 299 days | 9a |
| Lake CharlesLake Charles Regional Airport | February 14 | March 11 | December 7 | November 14 | 299 days | 9b |
| New IberiaNew Iberia Acadiana Regional Airport | February 14 | March 11 | December 5 | November 14 | 298 days | 9a |
| Jeanerette5 mi NW | February 15 | March 13 | December 3 | November 11 | 294 days | 9a |
| Leland Bowman Lock | February 17 | March 13 | December 5 | November 13 | 298 days | 9b |
| New Orleans Alvin Callender Fl | February 18 | March 13 | December 6 | November 15 | 295 days | – |
| Jennings | February 19 | March 13 | December 4 | November 12 | 292 days | 9a |
| Lafayette (13 mi SE) | February 19 | March 16 | December 1 | November 9 | 289 days | 9a |
| New Roads5 mi NE | February 19 | March 14 | December 5 | November 15 | 292 days | 9a |
| Crowley2 mi NE | February 20 | March 14 | December 4 | November 13 | 291 days | 9a |
| Donaldsonville4 mi SW | February 21 | March 15 | December 5 | November 14 | 291 days | 9a |
| St. MartinvilleSt Martinville (3 mi SW) | February 21 | March 17 | November 27 | November 9 | 280 days | 9a |
| Slidell station | February 24 | March 19 | December 1 | November 9 | 281 days | – |
| Baton RougeBaton Rouge Metro Airport | February 25 | March 19 | November 26 | November 7 | 276 days | 9a |
| Eunice | February 26 | March 17 | November 27 | November 8 | 276 days | 9a |
| Lafayette station | February 26 | March 20 | November 28 | November 7 | 279 days | – |
| Alexandria station | February 27 | March 18 | November 27 | November 7 | 274 days | – |
| Brusly2 mi W | February 28 | March 21 | November 24 | November 6 | 268 days | 9a |
| Bunkie | February 28 | March 21 | November 24 | November 5 | 270 days | 9a |
| Grand Coteau | February 28 | March 25 | November 23 | November 5 | 267 days | 9a |
| Lsu Ben-Hur Farm | February 28 | March 21 | November 26 | November 6 | 272 days | 9a |
| Natchitoches | February 28 | March 17 | December 1 | November 10 | 275 days | 9a |
| Rayville | February 28 | March 19 | November 26 | November 7 | 271 days | – |
| Shreveport Downtown Airport | February 28 | March 19 | November 24 | November 7 | 268 days | 9a |
| De Ridder | March 1 | March 25 | November 25 | November 8 | 269 days | 9a |
| Fort Polk Fullerton Landing Strip | March 1 | March 24 | November 23 | November 4 | 268 days | – |
| Lsu Dean Lee Research Station | March 1 | March 22 | November 22 | November 2 | 267 days | 9a |
| OberlinOberlin Fire Tower | March 1 | March 26 | November 24 | November 5 | 267 days | 9a |
| Toledo Bend Lake | March 1 | March 22 | November 30 | November 9 | 272 days | – |
| AlexandriaAlexandria International Airport | March 2 | March 25 | November 17 | November 1 | 260 days | 9a |
| Bogalusa | March 2 | March 24 | November 23 | November 6 | 265 days | – |
| Boyce3 mi WNW | March 2 | March 19 | November 27 | November 7 | 271 days | 9a |
| Moss Bluff2 mi NNW | March 2 | March 26 | November 25 | November 3 | 267 days | – |
| St. FrancisvilleSt Francisville (1 mi NE) | March 2 | March 29 | November 24 | November 5 | 268 days | – |
| Tallulah station | March 2 | March 21 | November 24 | November 6 | 271 days | 8b |
| Alexandria (5 mi SSE) | March 3 | March 24 | November 22 | November 3 | 263 days | – |
| Elizabeth | March 3 | March 28 | November 25 | November 3 | 268 days | – |
| Hodges Gardens | March 3 | March 22 | November 27 | November 7 | 267 days | – |
| SlidellSlidell Airport | March 3 | March 26 | November 21 | November 4 | 263 days | 9a |
| TallulahTallulah Vicksburg Regional Airport | March 3 | March 20 | November 11 | October 29 | 254 days | 8b |
| ColumbiaColumbia Lock | March 5 | March 27 | November 22 | November 4 | 263 days | 9a |
| Lake Providence | March 5 | March 22 | November 24 | November 6 | 263 days | 8b |
| Natchitoches #2 | March 5 | March 23 | November 17 | November 3 | 257 days | – |
| JonesvilleJonesville Locks | March 6 | March 25 | November 22 | November 3 | 261 days | 9a |
| Mooringsport1 mi N | March 6 | March 27 | November 19 | November 2 | 257 days | 8b |
| Red River Research Station | March 6 | March 26 | November 18 | November 1 | 256 days | 8b |
| Shreveport Weather Office | March 6 | March 29 | November 19 | November 2 | 257 days | – |
| Amite | March 7 | March 31 | November 18 | November 1 | 257 days | 9a |
| Winnsboro2 mi SE | March 7 | March 26 | November 13 | November 1 | 252 days | – |
| Hammond5 mi E | March 8 | March 31 | November 19 | November 3 | 257 days | 9a |
| Mansfield4 mi NW | March 8 | April 1 | November 20 | November 2 | 255 days | – |
| MonroeMonroe Regional Airport | March 8 | March 25 | November 15 | November 1 | 253 days | 8b |
| Peason Ridge Range | March 8 | March 26 | November 18 | November 2 | 258 days | – |
| RosepineRosepine Research Station | March 8 | March 31 | November 21 | November 3 | 259 days | 9a |
| Monroe Delta Cc | March 9 | March 28 | November 14 | October 31 | 248 days | – |
| ShreveportShreveport Airport | March 9 | March 29 | November 18 | November 2 | 255 days | 8b |
| Winnsboro (5 mi SSE) | March 10 | March 31 | November 16 | November 1 | 250 days | 8b |
| RustonRuston La Tech | March 11 | March 31 | November 16 | October 31 | 248 days | 8b |
| Covington4 mi NNW | March 12 | April 3 | November 18 | November 1 | 253 days | 8b |
| Shreveport Sthrn Hills | March 12 | April 1 | November 15 | October 31 | 247 days | 8b |
| Clinton5 mi SE | March 13 | April 4 | November 17 | November 1 | 251 days | 9a |
| St. JosephSt Joseph (3 mi N) | March 13 | April 4 | November 10 | October 27 | 242 days | 9a |
| Winnfield3 mi N | March 13 | April 5 | November 10 | October 27 | 242 days | – |
| Benton5 mi E | March 14 | April 1 | November 14 | October 31 | 246 days | – |
| Farmerville | March 14 | April 2 | November 16 | November 2 | 246 days | 8b |
| Bastrop | March 15 | April 3 | November 12 | October 29 | 241 days | 8b |
| Alexandria Esler Regional Airport | March 16 | April 6 | November 8 | October 26 | 239 days | 9a |
| Minden | March 17 | April 6 | November 14 | October 28 | 241 days | 8b |
| Bienville3 mi NE | March 19 | April 10 | November 9 | October 27 | 237 days | 8b |
| Jena | March 19 | April 9 | November 12 | October 29 | 238 days | 8b |
| Leesville | March 20 | April 12 | November 9 | October 26 | 234 days | 8b |
| Many | March 20 | April 9 | November 9 | October 26 | 236 days | – |
| Ashland | March 24 | April 16 | November 7 | October 22 | 229 days | 8b |
| Monroe (26 mi N) | March 25 | April 10 | November 5 | October 20 | 226 days | 8b |
| CalhounCalhoun Research Station | March 28 | April 14 | November 5 | October 24 | 224 days | 8b |
| Homer1 mi N | March 30 | April 16 | November 6 | October 23 | 221 days | 8b |
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities, growing-season length); station daily lows via ACIS (zone). Growing season: NOAA's median number of days between the last spring and first autumn 32°F night. Zone: the USDA's plant hardiness rule applied to the station's own 1991-2020 coldest nights.