Ellis, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.6 °F (low) to 67.1 °F (high). Annual precipitation averages 24 Inches. Ellis is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.2 °F | 42.3 °F | 0.56 in. |
| February | 20.0 °F | 46.1 °F | 0.76 in. |
| March | 28.9 °F | 56.9 °F | 1.35 in. |
| April | 38.1 °F | 65.8 °F | 2.1 in. |
| May | 49.6 °F | 75.5 °F | 3.68 in. |
| June | 60.7 °F | 87.0 °F | 3.36 in. |
| July | 65.8 °F | 92.2 °F | 3.57 in. |
| August | 63.8 °F | 89.8 °F | 3.11 in. |
| September | 54.5 °F | 81.9 °F | 1.98 in. |
| October | 40.7 °F | 69.1 °F | 1.75 in. |
| November | 28.3 °F | 55.3 °F | 0.9 in. |
| December | 19.3 °F | 43.5 °F | 0.92 in. |
| Annual | 40.6 °F | 67.1 °F | 24.04 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |