| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F | |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| 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: | 27h - Red Prairie | |
| Current Drought Status: | Severe Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 79529 - Knox City, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 32 | 40 | 49 | 59 | 67 | 71 | 70 | 63 | 51 | 39 | 31 | 50 |
| Avg Max Temp (°F) | 55 | 60 | 69 | 78 | 85 | 92 | 97 | 96 | 88 | 79 | 66 | 57 | 77 |
| Avg Precip (In.) | .97 | 1.46 | 1.57 | 1.96 | 3.76 | 3.32 | 1.79 | 2.66 | 3.23 | 2.7 | 1.34 | 1.2 | 25.95 |