Haven, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.5 °C (low) to 19.7 °C (high). Annual precipitation averages 818.1 Millimeters. Haven 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 | -5.5 °C | 6 °C | 20.07 mm |
| February | -3.8 °C | 8.2 °C | 32.77 mm |
| March | 1.5 °C | 14.1 °C | 59.18 mm |
| April | 6.7 °C | 19.2 °C | 69.09 mm |
| May | 12.7 °C | 24.5 °C | 129.29 mm |
| June | 18.3 °C | 30.4 °C | 115.06 mm |
| July | 20.6 °C | 32.8 °C | 101.09 mm |
| August | 19.6 °C | 31.8 °C | 96.77 mm |
| September | 15.1 °C | 27.8 °C | 62.23 mm |
| October | 7.8 °C | 20.9 °C | 67.06 mm |
| November | 1.2 °C | 13.6 °C | 35.56 mm |
| December | -4.1 °C | 6.9 °C | 29.97 mm |
| Annual | 7.5 °C | 19.7 °C | 818.14 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |