Herington, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.2 °C (low) to 19 °C (high). Annual precipitation averages 865.9 Millimeters. Herington is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.6 °C | 4.5 °C | 20.07 mm |
| February | -5.6 °C | 7.2 °C | 31.24 mm |
| March | -0.1 °C | 13.5 °C | 56.64 mm |
| April | 5.4 °C | 19 °C | 81.03 mm |
| May | 11.8 °C | 24 °C | 128.52 mm |
| June | 17.4 °C | 29.6 °C | 115.57 mm |
| July | 19.9 °C | 32.4 °C | 110.74 mm |
| August | 18.8 °C | 31.5 °C | 109.47 mm |
| September | 13.8 °C | 27.1 °C | 78.74 mm |
| October | 6.6 °C | 20.5 °C | 62.99 mm |
| November | 0 °C | 12.8 °C | 39.37 mm |
| December | -5.5 °C | 6.2 °C | 31.5 mm |
| Annual | 6.2 °C | 19 °C | 865.88 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |