Cedar Hill, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.7 °F (low) to 66.6 °F (high). Annual precipitation averages 43.8 Inches. Cedar Hill 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 | 22.1 °F | 40.3 °F | 2.74 in. |
| February | 25.7 °F | 45.8 °F | 2.44 in. |
| March | 34.4 °F | 56.0 °F | 3.74 in. |
| April | 44.9 °F | 67.9 °F | 4.81 in. |
| May | 55.5 °F | 76.6 °F | 5.13 in. |
| June | 64.4 °F | 85.0 °F | 4.29 in. |
| July | 68.6 °F | 88.7 °F | 3.99 in. |
| August | 66.3 °F | 87.5 °F | 3.68 in. |
| September | 58.0 °F | 81.0 °F | 3.52 in. |
| October | 45.9 °F | 69.4 °F | 3.25 in. |
| November | 35.3 °F | 55.9 °F | 3.48 in. |
| December | 26.7 °F | 44.6 °F | 2.73 in. |
| Annual | 45.7 °F | 66.6 °F | 43.8 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 | Cfa - Humid Subtropical Climate |