Falun, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.6 °C (low) to 19.8 °C (high). Annual precipitation averages 776 Millimeters. Falun 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 | -6.7 °C | 5.4 °C | 20.57 mm |
| February | -5.1 °C | 7.8 °C | 28.7 mm |
| March | 0.2 °C | 14 °C | 50.04 mm |
| April | 5.4 °C | 19.3 °C | 65.02 mm |
| May | 11.7 °C | 24.6 °C | 125.73 mm |
| June | 17.7 °C | 30.9 °C | 102.11 mm |
| July | 20.3 °C | 33.8 °C | 100.08 mm |
| August | 19.2 °C | 32.6 °C | 94.49 mm |
| September | 14.3 °C | 28.1 °C | 68.83 mm |
| October | 7 °C | 21.3 °C | 58.42 mm |
| November | 0 °C | 13.2 °C | 33.53 mm |
| December | -5.2 °C | 6.5 °C | 28.45 mm |
| Annual | 6.6 °C | 19.8 °C | 775.97 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |