Humansville, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.3 °C (low) to 19.5 °C (high). Annual precipitation averages 1156.2 Millimeters. Humansville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.6 °C | 5.7 °C | 52.58 mm |
| February | -3.6 °C | 8.6 °C | 54.1 mm |
| March | 1.4 °C | 14.2 °C | 82.3 mm |
| April | 6.6 °C | 19.8 °C | 124.71 mm |
| May | 12.4 °C | 24.3 °C | 152.4 mm |
| June | 17.6 °C | 29.1 °C | 117.86 mm |
| July | 19.9 °C | 31.7 °C | 106.93 mm |
| August | 18.8 °C | 31.3 °C | 103.38 mm |
| September | 14.2 °C | 27.2 °C | 117.86 mm |
| October | 7.6 °C | 20.9 °C | 92.71 mm |
| November | 1.9 °C | 13.7 °C | 84.58 mm |
| December | -3.2 °C | 7.7 °C | 66.8 mm |
| Annual | 7.3 °C | 19.5 °C | 1156.21 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°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 |