Frost dates for Shreveport Dwtn Airport, LA
At Shreveport Dwtn Airport, the median last spring frost (32°F) is Feb 28 and the median first fall frost is Nov 24, for a typical growing season of 268 days. For a 90% chance that the last frost has passed, wait until Mar 19. Nearby ZIP codes are in USDA hardiness zone 8b.
- Feb 28Last spring frost (median)50% chance of 32°F after this date
- Mar 19Safer planting date10% chance of 32°F after this date
- Nov 24First 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 24 | Mar 14 | Apr 3 |
| 32°F | Feb 4 | Feb 28 | Mar 19 |
| 28°F | Jan 16 | Feb 11 | Mar 7 |
| 24°F | Dec 29 | Jan 28 | Feb 24 |
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 31 | Nov 12 | Nov 29 |
| 32°F | Nov 7 | Nov 24 | Dec 14 |
| 28°F | Nov 17 | Dec 10 | Jan 7 |
| 24°F | Dec 3 | Jan 2 | Feb 1 |
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 | 217 days | 243 days | 267 days |
| 32°F | 241 days | 268 days | 298 days |
| 28°F | 269 days | 304 days | 337 days |
| 24°F | 305 days | 339 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 99% |
| 24°F | 81% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 71101 | 8b | 15 to 20°F | 4 km |
| 71111 | 8b | 15 to 20°F | 6 km |
| 71103 | 8b | 15 to 20°F | 6 km |
| 71104 | 8b | 15 to 20°F | 7 km |
| 71107 | 8b | 15 to 20°F | 12 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 USW00053905, at 32.5428, -93.7450, elevation 55 m (179 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 29.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Shreveport WFO (14 km)
- Shreveport (14 km)
- Red River Rsch Station (17 km)
- Shreveport Sthrn Hills (17 km)
- Benton 5e (19 km)
- Mooringsport 1 N (27 km)
- Minden (43 km)
- Mansfield 4 NW (52 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.