| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 27h - Red Prairie |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 79556 - Sweetwater, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 29 | 33 | 39 | 49 | 59 | 67 | 70 | 69 | 62 | 51 | 39 | 31 | 50 |
| Avg Max Temp (°F) | 55 | 61 | 70 | 78 | 85 | 91 | 94 | 93 | 86 | 77 | 65 | 57 | 76 |
| Avg Precip (In.) | .97 | 1.21 | 1.14 | 1.62 | 3.04 | 3.01 | 1.93 | 2.6 | 3.48 | 2.56 | 1.05 | 1.05 | 23.66 |