De Soto, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.5 °C (low) to 18.4 °C (high). Annual precipitation averages 1028.9 Millimeters. De Soto is located in USDA Plant Hardiness Zone 6b. 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 | -7.4 °C | 3.5 °C | 32 mm |
| February | -5.3 °C | 6.3 °C | 39.62 mm |
| March | 0.1 °C | 12.9 °C | 61.21 mm |
| April | 5.9 °C | 18.6 °C | 104.39 mm |
| May | 12.2 °C | 23.8 °C | 136.65 mm |
| June | 17.7 °C | 29.1 °C | 136.65 mm |
| July | 20 °C | 31.6 °C | 111.76 mm |
| August | 19 °C | 30.7 °C | 113.79 mm |
| September | 14.1 °C | 26.4 °C | 108.46 mm |
| October | 6.9 °C | 19.7 °C | 86.87 mm |
| November | 0.3 °C | 12.2 °C | 55.63 mm |
| December | -5.1 °C | 5.6 °C | 41.91 mm |
| Annual | 6.5 °C | 18.4 °C | 1028.94 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |