| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 11 - Nov. 20 | |
| Average Last Frost Date: | Mar. 11 - Mar. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 35a - Tertiary Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 75757 - Bullard, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 37 | 44 | 52 | 61 | 68 | 72 | 70 | 64 | 53 | 43 | 36 | 53 |
| Avg Max Temp (°F) | 55 | 61 | 68 | 76 | 82 | 89 | 94 | 94 | 88 | 78 | 66 | 58 | 76 |
| Avg Precip (In.) | 3.81 | 3.44 | 3.88 | 3.71 | 4.78 | 4.2 | 2.57 | 2.31 | 3.64 | 4.56 | 4.4 | 4.05 | 45.36 |