Raytown, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.8 °F (low) to 65 °F (high). Annual precipitation averages 42.3 Inches. Raytown 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 | 19.9 °F | 38.8 °F | 1.35 in. |
| February | 23.8 °F | 43.8 °F | 1.72 in. |
| March | 33.3 °F | 55.0 °F | 2.61 in. |
| April | 43.8 °F | 65.5 °F | 4.1 in. |
| May | 54.8 °F | 74.6 °F | 5.71 in. |
| June | 64.3 °F | 83.9 °F | 5.43 in. |
| July | 68.6 °F | 88.2 °F | 4.77 in. |
| August | 66.6 °F | 87.0 °F | 4.51 in. |
| September | 57.9 °F | 79.5 °F | 4.45 in. |
| October | 45.7 °F | 67.5 °F | 3.61 in. |
| November | 34.3 °F | 54.2 °F | 2.3 in. |
| December | 24.6 °F | 42.5 °F | 1.78 in. |
| Annual | 44.8 °F | 65 °F | 42.34 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 6b : -5°F to 0°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 |