Hesston, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.9 °F (low) to 67.1 °F (high). Annual precipitation averages 33.7 Inches. Hesston 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.1 °F | 41.9 °F | 0.79 in. |
| February | 24.2 °F | 46.2 °F | 1.25 in. |
| March | 33.7 °F | 56.8 °F | 2.35 in. |
| April | 43.2 °F | 66.3 °F | 2.77 in. |
| May | 54.3 °F | 75.7 °F | 5.25 in. |
| June | 64.6 °F | 86.4 °F | 4.71 in. |
| July | 68.7 °F | 91.0 °F | 4.45 in. |
| August | 66.9 °F | 89.4 °F | 3.93 in. |
| September | 58.6 °F | 81.8 °F | 2.9 in. |
| October | 45.8 °F | 69.5 °F | 2.46 in. |
| November | 33.7 °F | 55.9 °F | 1.58 in. |
| December | 24.1 °F | 44.0 °F | 1.23 in. |
| Annual | 44.9 °F | 67.1 °F | 33.67 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |