Frost dates for Jennings, LA
At Jennings, the median last spring frost (32°F) is Feb 19 and the median first fall frost is Dec 4, for a typical growing season of 292 days. For a 90% chance that the last frost has passed, wait until Mar 13. Nearby ZIP codes are in USDA hardiness zone 9a.
- Feb 19Last spring frost (median)50% chance of 32°F after this date
- Mar 13Safer planting date10% chance of 32°F after this date
- Dec 4First fall frost (median)50% chance of 32°F by this date
- 292 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 12 | Mar 6 | Mar 29 |
| 32°F | Jan 21 | Feb 19 | Mar 13 |
| 28°F | Dec 30 | Jan 31 | Mar 1 |
| 24°F | Dec 25 | Jan 23 | Feb 18 |
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 | Nov 3 | Nov 19 | Dec 8 |
| 32°F | Nov 12 | Dec 4 | Jan 4 |
| 28°F | Nov 28 | Dec 28 | Jan 27 |
| 24°F | Dec 10 | Jan 8 | 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 | 230 days | 259 days | 288 days |
| 32°F | 256 days | 292 days | 330 days |
| 28°F | 291 days | 330 days | 365 days |
| 24°F | 326 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 99% |
| 28°F | 89% |
| 24°F | 50% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 70546 | 9a | 20 to 25°F | 7 km |
| 70556 | 9a | 20 to 25°F | 8 km |
| 70581 | 9a | 20 to 25°F | 10 km |
| 70537 | 9a | 20 to 25°F | 11 km |
| 70559 | 9a | 20 to 25°F | 16 km |
| 70591 | 9a | 20 to 25°F | 17 km |
| 70650 | 9a | 20 to 25°F | 25 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 USC00164700, at 30.2003, -92.6642, elevation 8 m (25 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 14.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Lake Arthur 7 SW (22 km)
- Crowley 2 NE (31 km)
- Eunice (39 km)
- Oberlin Fire Twr (46 km)
- Lake Charles (54 km)
- Rockefeller Wl Refuge (55 km)
- Moss Bluff 2 NNW (55 km)
- Lafayette (58 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.