| 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. 21 - Nov. 30 |
| 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 75240 - Dallas, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 39 | 46 | 54 | 63 | 71 | 75 | 74 | 67 | 56 | 45 | 37 | 55 |
| Avg Max Temp (°F) | 55 | 60 | 68 | 76 | 83 | 91 | 96 | 95 | 88 | 78 | 65 | 57 | 76 |
| Avg Precip (In.) | 2.11 | 2.5 | 3.23 | 3.54 | 5.42 | 3.87 | 2.37 | 2.19 | 3 | 4.56 | 2.93 | 2.84 | 38.56 |