Frost dates for Meridian Key Field, MS
At Meridian Key Field, the median last spring frost (32°F) is Mar 16 and the median first fall frost is Nov 12, for a typical growing season of 239 days. For a 90% chance that the last frost has passed, wait until Apr 3. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 16Last spring frost (median)50% chance of 32°F after this date
- Apr 3Safer planting date10% chance of 32°F after this date
- Nov 12First fall frost (median)50% chance of 32°F by this date
- 239 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 12 | Mar 31 | Apr 17 |
| 32°F | Feb 24 | Mar 16 | Apr 3 |
| 28°F | Feb 1 | Feb 28 | Mar 21 |
| 24°F | Jan 11 | Feb 10 | Mar 10 |
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 19 | Nov 1 | Nov 17 |
| 32°F | Oct 29 | Nov 12 | Dec 2 |
| 28°F | Nov 7 | Nov 27 | Dec 27 |
| 24°F | Nov 23 | Dec 18 | Jan 20 |
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 | 193 days | 215 days | 239 days |
| 32°F | 214 days | 239 days | 269 days |
| 28°F | 241 days | 271 days | 307 days |
| 24°F | 272 days | 308 days | 347 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 97% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 39307 | 8b | 15 to 20°F | 4 km |
| 39342 | 8b | 15 to 20°F | 13 km |
| 39305 | 8b | 15 to 20°F | 14 km |
| 39301 | 8b | 15 to 20°F | 16 km |
| 39325 | 8b | 15 to 20°F | 28 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 USW00013865, at 32.3347, -88.7442, elevation 90 m (294 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 48.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Meridian Naas (29 km)
- Quitman 2 NNE (29 km)
- Newton 5 ENE (31 km)
- Newton Exp. Station (32 km)
- P Harrison Archusa (34 km)
- Philadelphia 1 WSW (60 km)
- Forest (64 km)
- Waynesboro 2 W (73 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.