Longton, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.6 °C (low) to 20.3 °C (high). Annual precipitation averages 1070.9 Millimeters. Longton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.7 °C | 6.8 °C | 33.27 mm |
| February | -3.7 °C | 9.4 °C | 42.67 mm |
| March | 1.4 °C | 15 °C | 70.36 mm |
| April | 7.1 °C | 20.3 °C | 112.78 mm |
| May | 13.1 °C | 24.7 °C | 150.88 mm |
| June | 18.3 °C | 29.6 °C | 155.45 mm |
| July | 20.7 °C | 32.6 °C | 111.25 mm |
| August | 19.6 °C | 32.4 °C | 99.06 mm |
| September | 14.7 °C | 28 °C | 99.06 mm |
| October | 7.8 °C | 21.8 °C | 93.22 mm |
| November | 1.4 °C | 14.7 °C | 57.15 mm |
| December | -3.8 °C | 8.3 °C | 45.72 mm |
| Annual | 7.6 °C | 20.3 °C | 1070.87 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°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 |