| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Mar. 1 - Mar. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 75a - Gulf Coast Flatwoods |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 39466 - Picayune, MS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 41 | 48 | 54 | 63 | 69 | 72 | 71 | 67 | 55 | 47 | 41 | 56 |
| Avg Max Temp (°F) | 61 | 65 | 71 | 77 | 84 | 90 | 91 | 91 | 87 | 80 | 70 | 64 | 78 |
| Avg Precip (In.) | 6.12 | 5.36 | 6.49 | 5.18 | 5.23 | 4.91 | 6.47 | 5.38 | 5.25 | 3.24 | 4.94 | 5.13 | 63.7 |