| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Mar. 21 - Mar. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65d - Southern Hilly Gulf Coastal Plain |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 39114 - Mendenhall, MS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 36 | 43 | 49 | 59 | 66 | 69 | 68 | 62 | 49 | 41 | 35 | 51 |
| Avg Max Temp (°F) | 57 | 62 | 70 | 76 | 83 | 89 | 92 | 92 | 87 | 78 | 68 | 60 | 76 |
| Avg Precip (In.) | 5.98 | 5.19 | 6.33 | 6.02 | 5.26 | 4.18 | 5.01 | 4.11 | 3.63 | 3.38 | 5.11 | 5.78 | 59.99 |