Lake Dunlap, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.1 °C (low) to 26.9 °C (high). Annual precipitation averages 860.8 Millimeters. Lake Dunlap is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.2 °C | 17.2 °C | 56.13 mm |
| February | 6.2 °C | 19.4 °C | 47.24 mm |
| March | 10.1 °C | 23 °C | 66.55 mm |
| April | 13.8 °C | 26.8 °C | 61.47 mm |
| May | 18.6 °C | 30.3 °C | 103.38 mm |
| June | 21.9 °C | 33.4 °C | 93.98 mm |
| July | 22.9 °C | 35.2 °C | 60.96 mm |
| August | 22.9 °C | 35.9 °C | 59.18 mm |
| September | 20 °C | 32.7 °C | 89.92 mm |
| October | 14.7 °C | 28.2 °C | 94.74 mm |
| November | 9.2 °C | 22.2 °C | 68.07 mm |
| December | 5.1 °C | 17.9 °C | 59.18 mm |
| Annual | 14.1 °C | 26.9 °C | 860.8 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |