| 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. 11 - Nov. 20 |
| Average Last Frost Date: | Mar. 11 - Mar. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 35e - Southern Tertiary Uplands |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 75941 - Diboll, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 40 | 47 | 53 | 62 | 68 | 71 | 70 | 65 | 54 | 46 | 39 | 54 |
| Avg Max Temp (°F) | 59 | 64 | 71 | 78 | 84 | 90 | 93 | 93 | 89 | 80 | 70 | 62 | 78 |
| Avg Precip (In.) | 4.42 | 3.21 | 3.58 | 3.26 | 5.18 | 4.36 | 2.72 | 3.01 | 4.03 | 4.13 | 4.5 | 4.47 | 46.88 |