| 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. 11 - Mar. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 74c - Southern Rolling Plains |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 39664 - Smithdale, MS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 39 | 46 | 52 | 60 | 67 | 70 | 69 | 64 | 53 | 44 | 38 | 53 |
| Avg Max Temp (°F) | 58 | 63 | 70 | 77 | 83 | 89 | 91 | 91 | 87 | 79 | 69 | 61 | 77 |
| Avg Precip (In.) | 6.69 | 5.43 | 6.54 | 5.9 | 5.53 | 4.88 | 5.2 | 4.73 | 4.43 | 3.52 | 5.07 | 5.8 | 63.72 |