Mound Valley, Kansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.4 °F (low) to 68 °F (high). Annual precipitation averages 44.9 Inches. Mound Valley is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.8 °F | 43.6 °F | 1.54 in. |
| February | 26.3 °F | 48.7 °F | 1.77 in. |
| March | 35.5 °F | 58.4 °F | 2.99 in. |
| April | 45.3 °F | 67.7 °F | 4.65 in. |
| May | 56.0 °F | 76.0 °F | 7.04 in. |
| June | 65.4 °F | 85.0 °F | 5.54 in. |
| July | 69.6 °F | 90.1 °F | 4.2 in. |
| August | 67.7 °F | 89.7 °F | 4.12 in. |
| September | 59.2 °F | 81.8 °F | 4.39 in. |
| October | 46.7 °F | 70.4 °F | 3.95 in. |
| November | 35.5 °F | 57.7 °F | 2.64 in. |
| December | 26.3 °F | 46.8 °F | 2.08 in. |
| Annual | 46.4 °F | 68 °F | 44.91 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |