| 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. 11 - Nov. 20 |
| Average Last Frost Date: | Mar. 11 - Mar. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 32b - Southern Blackland/Fayette Prairie |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 77830 - Anderson, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 39 | 43 | 50 | 56 | 65 | 71 | 73 | 72 | 67 | 58 | 48 | 41 | 57 |
| Avg Max Temp (°F) | 60 | 65 | 72 | 79 | 85 | 91 | 95 | 96 | 90 | 81 | 70 | 62 | 79 |
| Avg Precip (In.) | 3.85 | 2.93 | 3.28 | 3.41 | 5.12 | 4.14 | 2.35 | 2.96 | 4.4 | 4.33 | 4.12 | 3.78 | 44.65 |