Earlton, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.7 °C (low) to 19.7 °C (high). Annual precipitation averages 1103.9 Millimeters. Earlton 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 | -5.6 °C | 5.9 °C | 36.83 mm |
| February | -3.7 °C | 8.6 °C | 42.93 mm |
| March | 1.5 °C | 14.3 °C | 71.37 mm |
| April | 7.1 °C | 19.7 °C | 112.78 mm |
| May | 13.2 °C | 24.2 °C | 166.12 mm |
| June | 18.4 °C | 29.4 °C | 146.05 mm |
| July | 20.7 °C | 32.1 °C | 110.24 mm |
| August | 19.6 °C | 31.8 °C | 99.82 mm |
| September | 14.8 °C | 27.5 °C | 110.74 mm |
| October | 7.9 °C | 21 °C | 95.25 mm |
| November | 1.7 °C | 13.9 °C | 62.74 mm |
| December | -3.5 °C | 7.6 °C | 49.02 mm |
| Annual | 7.7 °C | 19.7 °C | 1103.89 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 |