Frost dates for Boyce 3 WNW, LA
At Boyce 3 WNW, the median last spring frost (32°F) is Mar 2 and the median first fall frost is Nov 27, for a typical growing season of 271 days. For a 90% chance that the last frost has passed, wait until Mar 19. Nearby ZIP codes are in USDA hardiness zone 9a.
- Mar 2Last spring frost (median)50% chance of 32°F after this date
- Mar 19Safer planting date10% chance of 32°F after this date
- Nov 27First fall frost (median)50% chance of 32°F by this date
- 271 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 26 | Mar 15 | Apr 2 |
| 32°F | Feb 1 | Mar 2 | Mar 19 |
| 28°F | Jan 12 | Feb 11 | Mar 8 |
| 24°F | Dec 29 | Jan 29 | 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 30 | Nov 13 | Dec 2 |
| 32°F | Nov 7 | Nov 27 | Dec 17 |
| 28°F | Nov 17 | Dec 14 | Jan 13 |
| 24°F | Dec 1 | 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 | 219 days | 244 days | 269 days |
| 32°F | 243 days | 271 days | 305 days |
| 28°F | 270 days | 307 days | 341 days |
| 24°F | 304 days | 343 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 98% |
| 24°F | 78% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 71447 | 9a | 20 to 25°F | 9 km |
| 71409 | 9a | 20 to 25°F | 10 km |
| 71417 | 9a | 20 to 25°F | 14 km |
| 71427 | 9a | 20 to 25°F | 17 km |
| 71466 | 9a | 20 to 25°F | 20 km |
| 71434 | 9a | 20 to 25°F | 22 km |
| 71416 | 9a | 20 to 25°F | 24 km |
| 71455 | 9a | 20 to 25°F | 26 km |
| 71423 | 9a | 20 to 25°F | 28 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 USC00161232, at 31.3944, -92.7164, elevation 34 m (110 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 16.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Alexandria Intl Airport (16 km)
- Alexandria (26 km)
- Alexandria 5 SSE (30 km)
- Fort Polk Fullerton Lndg Strip (36 km)
- Lsu Dean Lee Rsch Station (38 km)
- Alexandria Esler Regional Airport (40 km)
- Peason Ridge Range (54 km)
- Natchitoches (55 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.