Parkville, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7 °C (low) to 18.5 °C (high). Annual precipitation averages 1060.5 Millimeters. Parkville 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 | -7 °C | 3.6 °C | 36.58 mm |
| February | -4.8 °C | 6.6 °C | 42.67 mm |
| March | 0.6 °C | 12.9 °C | 61.21 mm |
| April | 6.5 °C | 18.7 °C | 101.6 mm |
| May | 12.7 °C | 23.8 °C | 138.18 mm |
| June | 18.1 °C | 29.1 °C | 137.67 mm |
| July | 20.4 °C | 31.6 °C | 117.6 mm |
| August | 19.3 °C | 30.8 °C | 115.06 mm |
| September | 14.3 °C | 26.6 °C | 113.79 mm |
| October | 7.4 °C | 19.9 °C | 89.41 mm |
| November | 1 °C | 12.2 °C | 59.94 mm |
| December | -4.3 °C | 5.8 °C | 46.74 mm |
| Annual | 7 °C | 18.5 °C | 1060.45 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 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 |