| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°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 75791 - Whitehouse, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 37 | 44 | 52 | 61 | 68 | 71 | 70 | 64 | 53 | 43 | 36 | 53 |
| Avg Max Temp (°F) | 55 | 61 | 68 | 76 | 82 | 89 | 94 | 93 | 87 | 78 | 66 | 58 | 76 |
| Avg Precip (In.) | 3.87 | 3.53 | 3.92 | 3.8 | 4.73 | 4.24 | 2.68 | 2.18 | 3.61 | 4.47 | 4.57 | 4.16 | 45.76 |