Platte City, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.4 °F (low) to 64.8 °F (high). Annual precipitation averages 39.9 Inches. Platte City is located in USDA Plant Hardiness Zone 6a. 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 | 18.0 °F | 37.7 °F | 1.15 in. |
| February | 22.0 °F | 43.2 °F | 1.42 in. |
| March | 31.9 °F | 54.8 °F | 2.24 in. |
| April | 42.3 °F | 65.1 °F | 3.93 in. |
| May | 53.6 °F | 74.4 °F | 5.34 in. |
| June | 63.7 °F | 84.1 °F | 5.17 in. |
| July | 67.7 °F | 88.4 °F | 4.71 in. |
| August | 65.5 °F | 87.0 °F | 4.35 in. |
| September | 56.6 °F | 79.5 °F | 4.34 in. |
| October | 44.2 °F | 67.7 °F | 3.55 in. |
| November | 32.3 °F | 53.8 °F | 2.06 in. |
| December | 22.7 °F | 42.0 °F | 1.67 in. |
| Annual | 43.4 °F | 64.8 °F | 39.93 in. |
| 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |