| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Mar. 1 - Mar. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 35f - Flatwoods |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 77664 - Warren, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 41 | 48 | 54 | 62 | 67 | 69 | 69 | 65 | 54 | 46 | 41 | 55 |
| Avg Max Temp (°F) | 62 | 66 | 74 | 79 | 85 | 90 | 93 | 93 | 88 | 80 | 70 | 63 | 79 |
| Avg Precip (In.) | 5.3 | 3.82 | 4.33 | 4.27 | 5.92 | 5.95 | 3.51 | 3.57 | 4.48 | 4.54 | 5.03 | 5.91 | 56.62 |