Green, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.4 °C (low) to 18.3 °C (high). Annual precipitation averages 811.8 Millimeters. Green 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.6 °C | 3.6 °C | 17.78 mm |
| February | -5.3 °C | 6.3 °C | 25.91 mm |
| March | 0.3 °C | 12.7 °C | 48.77 mm |
| April | 5.4 °C | 18.2 °C | 73.66 mm |
| May | 11.9 °C | 23.5 °C | 120.65 mm |
| June | 17.3 °C | 29.3 °C | 115.82 mm |
| July | 19.8 °C | 31.8 °C | 111.25 mm |
| August | 18.9 °C | 30.8 °C | 97.54 mm |
| September | 13.8 °C | 26.6 °C | 75.44 mm |
| October | 7.1 °C | 19.8 °C | 59.94 mm |
| November | -0.1 °C | 12 °C | 37.59 mm |
| December | -5.2 °C | 5.4 °C | 27.43 mm |
| Annual | 6.4 °C | 18.3 °C | 811.78 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°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 |