Edna, Kansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.1 °C (low) to 19.7 °C (high). Annual precipitation averages 1150.6 Millimeters. Edna 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 °C | 6.3 °C | 41.4 mm |
| February | -2.8 °C | 9 °C | 46.74 mm |
| March | 2 °C | 14.4 °C | 80.77 mm |
| April | 7.6 °C | 19.5 °C | 119.89 mm |
| May | 13.5 °C | 24.1 °C | 181.1 mm |
| June | 18.6 °C | 29.1 °C | 139.45 mm |
| July | 20.9 °C | 31.9 °C | 103.89 mm |
| August | 19.8 °C | 31.7 °C | 101.6 mm |
| September | 15.1 °C | 27.3 °C | 110.49 mm |
| October | 8.4 °C | 21.1 °C | 98.55 mm |
| November | 2.1 °C | 14.1 °C | 69.85 mm |
| December | -2.6 °C | 8 °C | 56.9 mm |
| Annual | 8.1 °C | 19.7 °C | 1150.63 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 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 | Cfa - Humid Subtropical Climate |