| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Dec. 11 - Dec. 20 |
| Average Last Frost Date: | Feb. 11 - Feb. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 35e - Southern Tertiary Uplands |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 77355 - Magnolia, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 40 | 43 | 50 | 56 | 65 | 71 | 72 | 72 | 67 | 58 | 49 | 41 | 57 |
| Avg Max Temp (°F) | 61 | 65 | 73 | 79 | 85 | 91 | 95 | 95 | 90 | 82 | 71 | 63 | 79 |
| Avg Precip (In.) | 3.8 | 3.09 | 3.14 | 3.46 | 5.1 | 4.49 | 2.86 | 3.42 | 4.68 | 4.19 | 4.57 | 3.85 | 46.63 |