Haviland, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.8 °C (low) to 20 °C (high). Annual precipitation averages 682.5 Millimeters. Haviland 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 | -5.7 °C | 6.8 °C | 18.03 mm |
| February | -4.2 °C | 9.2 °C | 21.84 mm |
| March | 0.8 °C | 14.3 °C | 44.96 mm |
| April | 5.7 °C | 19.5 °C | 60.2 mm |
| May | 11.8 °C | 24.8 °C | 96.27 mm |
| June | 17.3 °C | 30.3 °C | 100.84 mm |
| July | 19.7 °C | 33.1 °C | 88.14 mm |
| August | 18.8 °C | 31.9 °C | 87.38 mm |
| September | 14.3 °C | 28 °C | 54.36 mm |
| October | 7.2 °C | 21.4 °C | 61.21 mm |
| November | 0.4 °C | 13.6 °C | 25.4 mm |
| December | -4.5 °C | 7.5 °C | 23.88 mm |
| Annual | 6.8 °C | 20 °C | 682.51 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |