Frost dates for Franklin 3 NW, LA
At Franklin 3 NW, the median last spring frost (32°F) is Feb 11 and the median first fall frost is Dec 8, for a typical growing season of 303 days. For a 90% chance that the last frost has passed, wait until Mar 11. Nearby ZIP codes are in USDA hardiness zone 9b.
- Feb 11Last spring frost (median)50% chance of 32°F after this date
- Mar 11Safer planting date10% chance of 32°F after this date
- Dec 8First fall frost (median)50% chance of 32°F by this date
- 303 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 1 | Mar 21 |
| 32°F | Jan 12 | Feb 11 | Mar 11 |
| 28°F | Dec 22 | Jan 27 | Feb 26 |
| 24°F | Dec 21 | Jan 16 | Feb 15 |
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 5 | Nov 22 | Dec 12 |
| 32°F | Nov 15 | Dec 8 | Jan 9 |
| 28°F | Dec 1 | Dec 31 | Feb 1 |
| 24°F | Dec 16 | Jan 7 | Feb 5 |
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 | 238 days | 266 days | 300 days |
| 32°F | 263 days | 303 days | 339 days |
| 28°F | 303 days | 340 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 | 83% |
| 24°F | 46% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 70514 | 9b | 25 to 30°F | 3 km |
| 70523 | 9b | 25 to 30°F | 6 km |
| 70538 | 9b | 25 to 30°F | 6 km |
| 70522 | 9b | 25 to 30°F | 13 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 USC00163313, at 29.8233, -91.5442, elevation 4 m (12 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 10.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Jeanerette 5 NW (22 km)
- Salt Point (29 km)
- Morgan City (39 km)
- New Iberia Acadiana Airport (40 km)
- New Iberia Acadiana Regional Airport (40 km)
- St. Martinville 3 SW (43 km)
- Lafayette 13 SE (44 km)
- Donaldsonville 4 SW (57 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.