| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°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: | 65f - Southern Pine Plains and Hills |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 39641 - Jayess, MS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 39 | 46 | 52 | 61 | 67 | 70 | 69 | 65 | 53 | 45 | 39 | 54 |
| Avg Max Temp (°F) | 58 | 63 | 70 | 77 | 83 | 89 | 91 | 91 | 87 | 79 | 68 | 61 | 76 |
| Avg Precip (In.) | 6.63 | 5.44 | 6.55 | 5.99 | 5.68 | 4.66 | 5.13 | 4.5 | 4.02 | 3.51 | 4.99 | 5.77 | 62.88 |