Frost dates for Lafayette Regional Airport, LA
At Lafayette Regional Airport, the median last spring frost (32°F) is Feb 13 and the median first fall frost is Dec 4, for a typical growing season of 299 days. For a 90% chance that the last frost has passed, wait until Mar 10. Nearby ZIP codes are in USDA hardiness zone 9a.
- Feb 13Last spring frost (median)50% chance of 32°F after this date
- Mar 10Safer planting date10% chance of 32°F after this date
- Dec 4First fall frost (median)50% chance of 32°F by this date
- 299 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Feb 1 | Mar 3 | Mar 25 |
| 32°F | Jan 13 | Feb 13 | Mar 10 |
| 28°F | Dec 29 | Jan 27 | Feb 28 |
| 24°F | Dec 24 | Jan 17 | Feb 11 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Nov 4 | Nov 20 | Dec 10 |
| 32°F | Nov 13 | Dec 4 | Jan 5 |
| 28°F | Dec 1 | Dec 30 | Jan 23 |
| 24°F | Dec 13 | Jan 6 | Feb 3 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 236 days | 265 days | 297 days |
| 32°F | 263 days | 299 days | 335 days |
| 28°F | 297 days | 337 days | 365 days |
| 24°F | 333 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 99% |
| 28°F | 82% |
| 24°F | 45% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 70501 | 9a | 20 to 25°F | 4 km |
| 70508 | 9a | 20 to 25°F | 7 km |
| 70517 | 9a | 20 to 25°F | 22 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USW00013976, at 30.2050, -91.9875, elevation 12 m (38 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 11.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lafayette (8 km)
- Lafayette 13 SE (17 km)
- St. Martinville 3 SW (17 km)
- New Iberia Acadiana Airport (21 km)
- New Iberia Acadiana Regional Airport (21 km)
- Grand Coteau (24 km)
- Crowley 2 NE (35 km)
- Jeanerette 5 NW (38 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.