Hunnewell, Kansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.7 °F (low) to 70.4 °F (high). Annual precipitation averages 35.9 Inches. Hunnewell is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.4 °F | 46.1 °F | 1.1 in. |
| February | 26.6 °F | 50.8 °F | 1.38 in. |
| March | 35.6 °F | 60.6 °F | 2.6 in. |
| April | 44.7 °F | 70.1 °F | 3.53 in. |
| May | 56.0 °F | 78.6 °F | 5.05 in. |
| June | 65.9 °F | 88.2 °F | 5.0 in. |
| July | 70.3 °F | 93.1 °F | 4.04 in. |
| August | 68.5 °F | 92.1 °F | 3.7 in. |
| September | 60.3 °F | 84.7 °F | 2.87 in. |
| October | 47.6 °F | 72.8 °F | 3.33 in. |
| November | 35.7 °F | 59.6 °F | 1.83 in. |
| December | 26.1 °F | 47.8 °F | 1.51 in. |
| Annual | 46.7 °F | 70.4 °F | 35.94 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |