Frost dates for Gulfport - Biloxi Airport, MS
At Gulfport - Biloxi Airport, the median last spring frost (32°F) is Feb 23 and the median first fall frost is Dec 3, for a typical growing season of 287 days. For a 90% chance that the last frost has passed, wait until Mar 16. Nearby ZIP codes are in USDA hardiness zone 9a.
- Feb 23Last spring frost (median)50% chance of 32°F after this date
- Mar 16Safer planting date10% chance of 32°F after this date
- Dec 3First fall frost (median)50% chance of 32°F by this date
- 287 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 16 | Mar 9 | Mar 30 |
| 32°F | Jan 25 | Feb 23 | Mar 16 |
| 28°F | Jan 5 | Feb 1 | Mar 5 |
| 24°F | Dec 29 | Jan 24 | Feb 24 |
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 18 | Dec 7 |
| 32°F | Nov 12 | Dec 3 | Jan 5 |
| 28°F | Nov 28 | Dec 31 | Jan 23 |
| 24°F | Dec 12 | Jan 7 | Feb 5 |
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 | 228 days | 255 days | 284 days |
| 32°F | 255 days | 287 days | 323 days |
| 28°F | 286 days | 323 days | 359 days |
| 24°F | 317 days | 356 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 91% |
| 24°F | 60% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 39503 | 9a | 20 to 25°F | 9 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 USW00093874, at 30.4119, -89.0808, elevation 13 m (42 ft).
- Data quality: Representative (10+ years), 21 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
- Gulfport Naval Center (6 km)
- Biloxi (8 km)
- Saucier Exp. Forest (24 km)
- Waveland (32 km)
- Bay St. Louis Nasa (50 km)
- Wiggins (51 km)
- Pascagoula Lott Intl Airport (53 km)
- Pascagoula 3 NE (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.