Quitman, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 16.9 °C (high). Annual precipitation averages 928.9 Millimeters. Quitman is located in USDA Plant Hardiness Zone 5b. 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 | -9.9 °C | 0.9 °C | 20.32 mm |
| February | -7.7 °C | 3.9 °C | 27.43 mm |
| March | -1.7 °C | 11 °C | 52.07 mm |
| April | 4.1 °C | 17.4 °C | 91.44 mm |
| May | 10.9 °C | 23.1 °C | 135.38 mm |
| June | 16.7 °C | 28.1 °C | 124.21 mm |
| July | 18.7 °C | 30.3 °C | 131.83 mm |
| August | 17.2 °C | 29.4 °C | 99.06 mm |
| September | 11.9 °C | 25.8 °C | 87.63 mm |
| October | 5.1 °C | 19 °C | 75.69 mm |
| November | -1.7 °C | 10.4 °C | 48.01 mm |
| December | -7.2 °C | 3.3 °C | 35.81 mm |
| Annual | 4.7 °C | 16.9 °C | 928.88 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 5b : -26.1°C to -23.3°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 |