| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 25e - Rolling Cropland and Range |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 79029 - Dumas, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 24 | 31 | 39 | 50 | 60 | 65 | 64 | 56 | 43 | 31 | 23 | 42 |
| Avg Max Temp (°F) | 48 | 53 | 61 | 70 | 78 | 88 | 92 | 90 | 82 | 72 | 58 | 49 | 70 |
| Avg Precip (In.) | .47 | .57 | 1.15 | 1.31 | 2.76 | 2.48 | 2.44 | 2.48 | 1.9 | 1.14 | .68 | .51 | 17.89 |