Hays, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.2 °F (low) to 67.3 °F (high). Annual precipitation averages 24.3 Inches. Hays 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 | 17.7 °F | 42.2 °F | 0.52 in. |
| February | 20.4 °F | 46.2 °F | 0.78 in. |
| March | 29.6 °F | 56.8 °F | 1.3 in. |
| April | 38.8 °F | 66.2 °F | 2.09 in. |
| May | 50.4 °F | 75.9 °F | 3.53 in. |
| June | 61.4 °F | 87.3 °F | 3.28 in. |
| July | 66.4 °F | 92.3 °F | 3.94 in. |
| August | 64.1 °F | 89.8 °F | 3.34 in. |
| September | 55.3 °F | 82.3 °F | 2.07 in. |
| October | 41.4 °F | 69.4 °F | 1.74 in. |
| November | 28.9 °F | 55.5 °F | 0.89 in. |
| December | 20.0 °F | 43.7 °F | 0.84 in. |
| Annual | 41.2 °F | 67.3 °F | 24.32 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 |