Langdon, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7 °C (low) to 19.7 °C (high). Annual precipitation averages 742.7 Millimeters. Langdon 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 | -5.8 °C | 6.3 °C | 18.54 mm |
| February | -4.2 °C | 8.3 °C | 26.16 mm |
| March | 1.1 °C | 14.2 °C | 53.85 mm |
| April | 6 °C | 19.3 °C | 57.66 mm |
| May | 12.1 °C | 24.4 °C | 121.16 mm |
| June | 17.7 °C | 30.1 °C | 106.43 mm |
| July | 20.1 °C | 32.7 °C | 91.69 mm |
| August | 19 °C | 31.5 °C | 91.44 mm |
| September | 14.4 °C | 27.7 °C | 54.61 mm |
| October | 7.2 °C | 20.9 °C | 62.48 mm |
| November | 0.6 °C | 13.6 °C | 30.99 mm |
| December | -4.2 °C | 7.1 °C | 27.69 mm |
| Annual | 7 °C | 19.7 °C | 742.7 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 |