Fredonia, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.5 °C (low) to 20.1 °C (high). Annual precipitation averages 1072.6 Millimeters. Fredonia is located in USDA Plant Hardiness Zone 7a. 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 | -5.8 °C | 6.3 °C | 31.75 mm |
| February | -3.7 °C | 9.1 °C | 39.12 mm |
| March | 1.4 °C | 14.7 °C | 66.29 mm |
| April | 6.9 °C | 20.1 °C | 114.05 mm |
| May | 13 °C | 24.5 °C | 155.96 mm |
| June | 18.3 °C | 29.7 °C | 151.38 mm |
| July | 20.6 °C | 32.6 °C | 105.66 mm |
| August | 19.5 °C | 32.3 °C | 111.25 mm |
| September | 14.6 °C | 27.7 °C | 99.06 mm |
| October | 7.6 °C | 21.5 °C | 96.01 mm |
| November | 1.4 °C | 14.2 °C | 55.88 mm |
| December | -3.7 °C | 7.9 °C | 46.23 mm |
| Annual | 7.5 °C | 20.1 °C | 1072.64 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 |