Damon, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.9 °F (low) to 79.6 °F (high). Annual precipitation averages 51.7 Inches. Damon is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 43.6 °F | 63.4 °F | 3.8 in. |
| February | 47.5 °F | 67.1 °F | 2.7 in. |
| March | 53.4 °F | 73.4 °F | 3.36 in. |
| April | 59.2 °F | 78.6 °F | 3.77 in. |
| May | 67.1 °F | 84.9 °F | 4.83 in. |
| June | 72.9 °F | 90.8 °F | 5.18 in. |
| July | 73.8 °F | 92.1 °F | 4.23 in. |
| August | 73.8 °F | 93.6 °F | 5.13 in. |
| September | 70.0 °F | 89.8 °F | 5.62 in. |
| October | 60.7 °F | 82.6 °F | 4.76 in. |
| November | 51.7 °F | 72.7 °F | 4.39 in. |
| December | 45.4 °F | 65.6 °F | 3.94 in. |
| Annual | 59.9 °F | 79.6 °F | 51.71 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |