| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | 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: | 35a - Tertiary Uplands |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 75570 - New Boston, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 35 | 42 | 50 | 60 | 67 | 71 | 70 | 63 | 51 | 41 | 34 | 51 |
| Avg Max Temp (°F) | 53 | 59 | 67 | 75 | 82 | 89 | 93 | 93 | 87 | 77 | 65 | 56 | 75 |
| Avg Precip (In.) | 3.54 | 3.74 | 4.46 | 4.08 | 4.75 | 4.65 | 3.74 | 2.55 | 3.67 | 4.51 | 5.53 | 4.84 | 50.05 |