Frost dates for Amite, LA
At Amite, the median last spring frost (32°F) is Mar 7 and the median first fall frost is Nov 18, for a typical growing season of 257 days. For a 90% chance that the last frost has passed, wait until Mar 31. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Mar 7Last spring frost (median)50% chance of 32°F after this date
- Mar 31Safer planting date10% chance of 32°F after this date
- Nov 18First fall frost (median)50% chance of 32°F by this date
- 257 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 | Mar 2 | Mar 26 | Apr 13 |
| 32°F | Feb 10 | Mar 7 | Mar 31 |
| 28°F | Jan 22 | Feb 20 | Mar 16 |
| 24°F | Dec 27 | Jan 31 | Mar 3 |
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 22 | Nov 5 | Nov 24 |
| 32°F | Nov 1 | Nov 18 | Dec 8 |
| 28°F | Nov 11 | Dec 2 | Jan 4 |
| 24°F | Dec 1 | Dec 28 | Jan 29 |
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 | 200 days | 226 days | 254 days |
| 32°F | 227 days | 257 days | 289 days |
| 28°F | 257 days | 293 days | 329 days |
| 24°F | 291 days | 330 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 88% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 70422 | 9a | 20 to 25°F | 4 km |
| 70456 | 9a | 20 to 25°F | 9 km |
| 70443 | 9a | 20 to 25°F | 9 km |
| 70436 | 9a | 20 to 25°F | 14 km |
| 70442 | 9a | 20 to 25°F | 18 km |
| 70465 | 9a | 20 to 25°F | 19 km |
| 70444 | 8b | 15 to 20°F | 21 km |
| 70744 | 9a | 20 to 25°F | 22 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 USC00160205, at 30.7094, -90.5250, elevation 52 m (170 ft).
- Data quality: Representative (10+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 34.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Hammond 5 E (27 km)
- Covington 4 NNW (44 km)
- Clinton 5 SE (44 km)
- Baton Rouge Ryan Airport (63 km)
- Bogalusa (64 km)
- Lsu Ben-Hur Farm (72 km)
- Reserve (73 km)
- Slidell Airport (79 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.