| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Jan. 21 - Jan. 31 |
| Average Last Frost Date: | Jan. 21 - Jan. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75k - Gulf Barrier Islands and Coastal Marshes |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 39531 - Biloxi, MS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 43 | 46 | 52 | 58 | 67 | 73 | 75 | 74 | 70 | 60 | 51 | 45 | 60 |
| Avg Max Temp (°F) | 59 | 63 | 69 | 75 | 82 | 87 | 89 | 89 | 86 | 78 | 69 | 62 | 76 |
| Avg Precip (In.) | 6.22 | 5.44 | 6.19 | 4.8 | 5.42 | 5.17 | 7.27 | 6 | 5.67 | 3.3 | 4.87 | 4.85 | 65.18 |