Quanah, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.9 °F (low) to 75.7 °F (high). Annual precipitation averages 26.4 Inches. Quanah is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.7 °F | 54.2 °F | 0.98 in. |
| February | 30.2 °F | 57.8 °F | 1.02 in. |
| March | 38.8 °F | 67.0 °F | 1.69 in. |
| April | 46.8 °F | 75.6 °F | 2.4 in. |
| May | 57.9 °F | 84.1 °F | 3.63 in. |
| June | 67.5 °F | 92.5 °F | 3.49 in. |
| July | 71.2 °F | 96.6 °F | 2.35 in. |
| August | 70.0 °F | 95.9 °F | 2.76 in. |
| September | 62.1 °F | 87.7 °F | 2.89 in. |
| October | 49.6 °F | 77.2 °F | 2.39 in. |
| November | 37.6 °F | 64.8 °F | 1.62 in. |
| December | 28.5 °F | 54.8 °F | 1.14 in. |
| Annual | 48.9 °F | 75.7 °F | 26.36 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |