| 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: | 32a - Northern Blackland Prairie |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 75159 - Seagoville, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 32 | 37 | 44 | 52 | 61 | 69 | 72 | 71 | 65 | 54 | 43 | 35 | 53 |
| Avg Max Temp (°F) | 55 | 60 | 67 | 75 | 82 | 90 | 95 | 95 | 89 | 79 | 66 | 57 | 76 |
| Avg Precip (In.) | 2.34 | 2.93 | 3.17 | 3.43 | 4.92 | 3.66 | 2.12 | 2.06 | 3.07 | 4.68 | 3.36 | 3.09 | 38.82 |