Frost dates for Bogalusa, LA
At Bogalusa, the median last spring frost (32°F) is Mar 2 and the median first fall frost is Nov 23, for a typical growing season of 265 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 2Last 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
- 265 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 17 | Apr 7 |
| 32°F | Feb 5 | Mar 2 | Mar 24 |
| 28°F | Jan 13 | Feb 11 | Mar 14 |
| 24°F | Dec 31 | Jan 28 | Mar 2 |
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 11 | Dec 1 |
| 32°F | Nov 6 | Nov 23 | Dec 18 |
| 28°F | Nov 15 | Dec 12 | Jan 13 |
| 24°F | Dec 6 | 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 | 211 days | 238 days | 268 days |
| 32°F | 237 days | 265 days | 298 days |
| 28°F | 264 days | 302 days | 339 days |
| 24°F | 299 days | 336 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 | 80% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 70427 | 9a | 20 to 25°F | 7 km |
| 70463 | 9a | 20 to 25°F | 14 km |
| 70426 | 9a | 20 to 25°F | 16 km |
| 70438 | 9a | 20 to 25°F | 24 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 USC00160945, at 30.7808, -89.8567, elevation 30 m (100 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 28.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Covington 4 NNW (37 km)
- Slidell Airport (49 km)
- Slidell (58 km)
- Hammond 5 E (59 km)
- Amite (64 km)
- New Orleans Lakefront Airport (83 km)
- Chalmette (93 km)
- New Orleans Intl Airport (95 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.