Damon, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.5 °C (low) to 26.4 °C (high). Annual precipitation averages 1313.4 Millimeters. Damon is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.4 °C | 17.4 °C | 96.52 mm |
| February | 8.6 °C | 19.5 °C | 68.58 mm |
| March | 11.9 °C | 23 °C | 85.34 mm |
| April | 15.1 °C | 25.9 °C | 95.76 mm |
| May | 19.5 °C | 29.4 °C | 122.68 mm |
| June | 22.7 °C | 32.7 °C | 131.57 mm |
| July | 23.2 °C | 33.4 °C | 107.44 mm |
| August | 23.2 °C | 34.2 °C | 130.3 mm |
| September | 21.1 °C | 32.1 °C | 142.75 mm |
| October | 15.9 °C | 28.1 °C | 120.9 mm |
| November | 10.9 °C | 22.6 °C | 111.51 mm |
| December | 7.4 °C | 18.7 °C | 100.08 mm |
| Annual | 15.5 °C | 26.4 °C | 1313.43 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |