Cowgill, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.7 °C (low) to 17.4 °C (high). Annual precipitation averages 1028.2 Millimeters. Cowgill is located in USDA Plant Hardiness Zone 6a. 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 | -8.4 °C | 2.1 °C | 31.75 mm |
| February | -6.2 °C | 5.1 °C | 41.66 mm |
| March | -0.6 °C | 11.6 °C | 67.56 mm |
| April | 5.1 °C | 17.7 °C | 99.57 mm |
| May | 11.4 °C | 22.9 °C | 141.22 mm |
| June | 16.8 °C | 28.3 °C | 131.57 mm |
| July | 19.1 °C | 30.7 °C | 113.28 mm |
| August | 17.9 °C | 30.1 °C | 115.06 mm |
| September | 12.9 °C | 25.8 °C | 106.93 mm |
| October | 6.3 °C | 19.2 °C | 81.28 mm |
| November | -0.1 °C | 11.3 °C | 55.12 mm |
| December | -5.4 °C | 4.5 °C | 43.18 mm |
| Annual | 5.7 °C | 17.4 °C | 1028.18 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |