| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| 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: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 79040 - Gruver, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 22 | 30 | 39 | 50 | 60 | 64 | 63 | 55 | 42 | 29 | 21 | 41 |
| Avg Max Temp (°F) | 47 | 53 | 61 | 70 | 78 | 88 | 93 | 90 | 83 | 73 | 58 | 48 | 70 |
| Avg Precip (In.) | .53 | .58 | 1.43 | 1.55 | 3.06 | 2.83 | 2.78 | 2.31 | 1.76 | 1.42 | .85 | .67 | 19.77 |