Barnard, 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 19.8 °C (high). Annual precipitation averages 725.9 Millimeters. Barnard 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 | -7.3 °C | 5.1 °C | 17.78 mm |
| February | -5.6 °C | 7.6 °C | 23.11 mm |
| March | -0.4 °C | 13.9 °C | 38.35 mm |
| April | 5 °C | 19.4 °C | 62.48 mm |
| May | 11.4 °C | 24.7 °C | 112.01 mm |
| June | 17.5 °C | 31.1 °C | 104.14 mm |
| July | 20.2 °C | 34 °C | 107.44 mm |
| August | 18.9 °C | 32.6 °C | 93.22 mm |
| September | 13.9 °C | 28.3 °C | 64.52 mm |
| October | 6.6 °C | 21.2 °C | 48.77 mm |
| November | -0.4 °C | 13 °C | 29.46 mm |
| December | -5.7 °C | 6.2 °C | 24.64 mm |
| Annual | 6.2 °C | 19.8 °C | 725.92 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 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 |