Richmond, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.4 °C (low) to 19.1 °C (high). Annual precipitation averages 1016 Millimeters. Richmond 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.1 °C | 4.8 °C | 29.97 mm |
| February | -4.1 °C | 7.3 °C | 40.64 mm |
| March | 1.1 °C | 13.6 °C | 60.96 mm |
| April | 6.6 °C | 19.1 °C | 101.85 mm |
| May | 12.8 °C | 23.9 °C | 141.99 mm |
| June | 18.2 °C | 29.3 °C | 134.11 mm |
| July | 20.4 °C | 31.9 °C | 107.19 mm |
| August | 19.3 °C | 31.3 °C | 103.89 mm |
| September | 14.6 °C | 26.9 °C | 110.49 mm |
| October | 7.8 °C | 20.8 °C | 86.87 mm |
| November | 1.6 °C | 13.2 °C | 55.88 mm |
| December | -3.8 °C | 6.6 °C | 42.16 mm |
| Annual | 7.4 °C | 19.1 °C | 1016 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |