Frost dates for Fort Polk Fullerton Lndg Strip, LA
At Fort Polk Fullerton Lndg Strip, the median last spring frost (32°F) is Mar 1 and the median first fall frost is Nov 23, for a typical growing season of 268 days. For a 90% chance that the last frost has passed, wait until Mar 24. Nearby ZIP codes are in USDA hardiness zone 9a.
- Mar 1Last spring frost (median)50% chance of 32°F after this date
- Mar 24Safer planting date10% chance of 32°F after this date
- Nov 23First fall frost (median)50% chance of 32°F by this date
- 268 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 23 | Mar 15 | Apr 5 |
| 32°F | Jan 31 | Mar 1 | Mar 24 |
| 28°F | Jan 2 | Feb 7 | Mar 9 |
| 24°F | Dec 22 | Jan 23 | Feb 28 |
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 | Oct 28 | Nov 11 | Dec 1 |
| 32°F | Nov 4 | Nov 23 | Dec 20 |
| 28°F | Nov 15 | Dec 10 | Jan 14 |
| 24°F | Nov 30 | Jan 1 | Feb 2 |
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 | 215 days | 242 days | 271 days |
| 32°F | 238 days | 268 days | 307 days |
| 28°F | 265 days | 308 days | 345 days |
| 24°F | 303 days | 347 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 96% |
| 24°F | 71% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 71438 | 9a | 20 to 25°F | 10 km |
| 71474 | 9a | 20 to 25°F | 15 km |
| 71472 | 9a | 20 to 25°F | 17 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 USW00053988, at 31.1500, -92.9667, elevation 94 m (310 ft).
- Data quality: Estimated from nearby stations (2+ years), 13 years of freeze data.
- Average days per year at or below 32°F: 25.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Leesville (26 km)
- Boyce 3 WNW (36 km)
- Rosepine Rsch Station (37 km)
- Elizabeth (38 km)
- Peason Ridge Range (41 km)
- Alexandria Intl Airport (44 km)
- De Ridder (46 km)
- Hodges Gardens (47 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.