Mullinville, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.2 °F (low) to 68.5 °F (high). Annual precipitation averages 25.2 Inches. Mullinville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.6 °F | 44.9 °F | 0.67 in. |
| February | 23.4 °F | 49.1 °F | 0.75 in. |
| March | 32.1 °F | 58.4 °F | 1.59 in. |
| April | 41.0 °F | 67.4 °F | 2.18 in. |
| May | 52.3 °F | 76.9 °F | 3.45 in. |
| June | 62.6 °F | 86.9 °F | 3.83 in. |
| July | 66.8 °F | 91.9 °F | 3.5 in. |
| August | 65.3 °F | 89.9 °F | 3.29 in. |
| September | 56.9 °F | 82.8 °F | 1.81 in. |
| October | 43.7 °F | 70.7 °F | 2.26 in. |
| November | 31.4 °F | 56.8 °F | 0.9 in. |
| December | 22.8 °F | 46.0 °F | 0.94 in. |
| Annual | 43.2 °F | 68.5 °F | 25.17 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |