Frost dates for Hattiesburg 5sw, MS
At Hattiesburg 5sw, the median last spring frost (32°F) is Mar 7 and the median first fall frost is Nov 23, for a typical growing season of 261 days. For a 90% chance that the last frost has passed, wait until Mar 26. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 7Last spring frost (median)50% chance of 32°F after this date
- Mar 26Safer planting date10% chance of 32°F after this date
- Nov 23First fall frost (median)50% chance of 32°F by this date
- 261 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 23 | Apr 12 |
| 32°F | Feb 14 | Mar 7 | Mar 26 |
| 28°F | Jan 26 | Feb 20 | Mar 16 |
| 24°F | Jan 4 | Feb 4 | Mar 7 |
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 27 | Nov 11 | Nov 29 |
| 32°F | Nov 5 | Nov 23 | Dec 14 |
| 28°F | Nov 14 | Dec 4 | Jan 6 |
| 24°F | Dec 1 | Dec 30 | Jan 28 |
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 | 208 days | 233 days | 260 days |
| 32°F | 234 days | 261 days | 290 days |
| 28°F | 259 days | 291 days | 325 days |
| 24°F | 288 days | 323 days | 361 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 99% |
| 24°F | 89% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 39406 | 8b | 15 to 20°F | 8 km |
| 39402 | 8b | 15 to 20°F | 11 km |
| 39475 | 8b | 15 to 20°F | 13 km |
| 39482 | 8b | 15 to 20°F | 26 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 USC00223887, at 31.2547, -89.3392, elevation 117 m (385 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 32.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Hattiesburg Chain Muni Airport (9 km)
- Beaumont Expstation (40 km)
- Columbia (47 km)
- Wiggins (47 km)
- Collins (48 km)
- Poplarville Exp. Station (50 km)
- Laurel (51 km)
- Tylertown 5ese (71 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.