Valley Falls, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.5 °C (low) to 18.8 °C (high). Annual precipitation averages 961.7 Millimeters. Valley Falls 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 | -7.5 °C | 3.8 °C | 23.62 mm |
| February | -5.6 °C | 6.5 °C | 31.5 mm |
| March | 0 °C | 13.1 °C | 58.17 mm |
| April | 5.8 °C | 19.1 °C | 94.49 mm |
| May | 12.2 °C | 24.3 °C | 137.92 mm |
| June | 17.8 °C | 29.6 °C | 124.97 mm |
| July | 20.1 °C | 32.2 °C | 114.3 mm |
| August | 18.8 °C | 31.3 °C | 114.3 mm |
| September | 13.8 °C | 27.2 °C | 99.82 mm |
| October | 7.1 °C | 20.5 °C | 75.44 mm |
| November | 0.4 °C | 12.6 °C | 49.28 mm |
| December | -5.2 °C | 5.7 °C | 37.85 mm |
| Annual | 6.5 °C | 18.8 °C | 961.66 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |