| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F 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. 11 - Mar. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 29e - Limestone Cut Plain |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 76634 - Clifton, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 37 | 45 | 53 | 62 | 69 | 72 | 71 | 65 | 54 | 44 | 35 | 53 |
| Avg Max Temp (°F) | 57 | 63 | 70 | 77 | 84 | 91 | 96 | 96 | 89 | 80 | 68 | 59 | 78 |
| Avg Precip (In.) | 1.89 | 2.33 | 2.72 | 2.98 | 4.51 | 3.79 | 2.08 | 2.37 | 3.01 | 3.53 | 2.55 | 2.46 | 34.22 |