Commerce, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.7 °F (low) to 68.1 °F (high). Annual precipitation averages 50.2 Inches. Commerce is located in USDA Plant Hardiness Zone 7a. 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 | 26.2 °F | 42.9 °F | 3.68 in. |
| February | 29.3 °F | 48.2 °F | 3.72 in. |
| March | 37.3 °F | 58.0 °F | 4.71 in. |
| April | 47.1 °F | 68.9 °F | 5.62 in. |
| May | 57.6 °F | 77.8 °F | 5.36 in. |
| June | 65.9 °F | 86.2 °F | 4.33 in. |
| July | 69.3 °F | 89.1 °F | 3.75 in. |
| August | 66.9 °F | 88.0 °F | 3.02 in. |
| September | 58.7 °F | 82.1 °F | 3.39 in. |
| October | 47.0 °F | 71.5 °F | 3.9 in. |
| November | 36.8 °F | 57.5 °F | 4.74 in. |
| December | 29.8 °F | 46.5 °F | 4.0 in. |
| Annual | 47.7 °F | 68.1 °F | 50.22 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |