| 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 | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 79081 - Spearman, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 25 | 33 | 41 | 52 | 61 | 66 | 64 | 56 | 44 | 32 | 23 | 43 |
| Avg Max Temp (°F) | 50 | 56 | 65 | 73 | 81 | 90 | 94 | 93 | 85 | 75 | 61 | 52 | 73 |
| Avg Precip (In.) | .54 | .61 | 1.51 | 1.55 | 2.9 | 2.92 | 2.75 | 2.39 | 2 | 1.36 | .98 | .66 | 20.17 |