Kennett, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.1 °F (low) to 70 °F (high). Annual precipitation averages 50.9 Inches. Kennett is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.7 °F | 45.1 °F | 3.59 in. |
| February | 32.0 °F | 50.4 °F | 4.22 in. |
| March | 39.8 °F | 59.5 °F | 5.09 in. |
| April | 49.5 °F | 71.1 °F | 5.52 in. |
| May | 60.1 °F | 80.2 °F | 5.29 in. |
| June | 68.3 °F | 88.3 °F | 3.58 in. |
| July | 71.6 °F | 91.0 °F | 4.18 in. |
| August | 69.2 °F | 89.7 °F | 2.85 in. |
| September | 61.4 °F | 84.0 °F | 2.95 in. |
| October | 49.5 °F | 73.4 °F | 4.32 in. |
| November | 39.5 °F | 59.2 °F | 4.63 in. |
| December | 32.1 °F | 48.3 °F | 4.68 in. |
| Annual | 50.1 °F | 70 °F | 50.9 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |