Maysville, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.5 °C (low) to 17.3 °C (high). Annual precipitation averages 1005.9 Millimeters. Maysville 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 | -8.7 °C | 1.9 °C | 26.16 mm |
| February | -6.6 °C | 4.8 °C | 36.58 mm |
| March | -0.8 °C | 11.6 °C | 61.98 mm |
| April | 4.8 °C | 17.6 °C | 97.54 mm |
| May | 11.3 °C | 23.1 °C | 145.8 mm |
| June | 16.8 °C | 28.2 °C | 134.62 mm |
| July | 19.1 °C | 30.7 °C | 118.87 mm |
| August | 17.8 °C | 29.8 °C | 110.24 mm |
| September | 12.8 °C | 25.8 °C | 101.85 mm |
| October | 6 °C | 18.9 °C | 81.53 mm |
| November | -0.4 °C | 11.3 °C | 50.8 mm |
| December | -6 °C | 4.3 °C | 39.88 mm |
| Annual | 5.5 °C | 17.3 °C | 1005.85 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 |