Edson, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 2.9 °C (low) to 18.7 °C (high). Annual precipitation averages 489.5 Millimeters. Edson is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.7 °C | 5.8 °C | 8.38 mm |
| February | -7.7 °C | 7.4 °C | 12.19 mm |
| March | -3.6 °C | 13.1 °C | 21.84 mm |
| April | 1.1 °C | 17.7 °C | 42.42 mm |
| May | 7.3 °C | 23 °C | 68.58 mm |
| June | 13.3 °C | 29.6 °C | 72.39 mm |
| July | 16.4 °C | 32.7 °C | 83.57 mm |
| August | 15.3 °C | 31.2 °C | 75.69 mm |
| September | 10.2 °C | 26.9 °C | 39.37 mm |
| October | 2.6 °C | 19.4 °C | 38.61 mm |
| November | -3.7 °C | 11.8 °C | 16 mm |
| December | -8.1 °C | 6.3 °C | 10.41 mm |
| Annual | 2.9 °C | 18.7 °C | 489.45 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |