| 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. 21 - Mar. 31 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 32a - Northern Blackland Prairie | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 76645 - Hillsboro, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 39 | 47 | 54 | 63 | 69 | 73 | 72 | 66 | 56 | 45 | 37 | 55 |
| Avg Max Temp (°F) | 57 | 63 | 71 | 77 | 84 | 91 | 95 | 96 | 89 | 80 | 68 | 59 | 78 |
| Avg Precip (In.) | 2.12 | 2.64 | 3.15 | 3.19 | 4.69 | 4.01 | 2.07 | 2.18 | 2.92 | 4.13 | 2.72 | 2.99 | 36.82 |