Frost dates for Rockefeller Wl Refuge, LA
At Rockefeller Wl Refuge, the median last spring frost (32°F) is Feb 2 and the median first fall frost is Dec 23, for a typical growing season of 323 days. For a 90% chance that the last frost has passed, wait until Mar 4. Nearby ZIP codes are in USDA hardiness zone 9b.
- Feb 2Last spring frost (median)50% chance of 32°F after this date
- Mar 4Safer planting date10% chance of 32°F after this date
- Dec 23First fall frost (median)50% chance of 32°F by this date
- 323 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 | Jan 25 | Feb 22 | Mar 15 |
| 32°F | Jan 2 | Feb 2 | Mar 4 |
| 28°F | Dec 21 | Jan 21 | Feb 23 |
| 24°F | Dec 28 | Jan 16 | Feb 6 |
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 13 | Dec 3 | Jan 2 |
| 32°F | Nov 29 | Dec 23 | Jan 19 |
| 28°F | Dec 9 | Jan 5 | Feb 6 |
| 24°F | Dec 24 | Jan 10 | 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 | 254 days | 287 days | 322 days |
| 32°F | 286 days | 323 days | 359 days |
| 28°F | 318 days | 355 days | 365 days |
| 24°F | 346 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 92% |
| 28°F | 63% |
| 24°F | 24% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 70643 | 9b | 25 to 30°F | 4 km |
| 70632 | 9b | 25 to 30°F | 18 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 USC00167932, at 29.7286, -92.8181, elevation 1 m (4 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 8.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lake Arthur 7 SW (33 km)
- Jennings (55 km)
- Lake Charles (58 km)
- Hackberry 8 SSW (59 km)
- Leland Bowman Lock (60 km)
- Crowley 2 NE (73 km)
- Moss Bluff 2 NNW (78 km)
- Lafayette (91 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.