Homestown, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.1 °F (low) to 69.4 °F (high). Annual precipitation averages 50.7 Inches. Homestown 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 | 28.6 °F | 44.6 °F | 3.65 in. |
| February | 31.8 °F | 49.8 °F | 4.04 in. |
| March | 39.7 °F | 59.1 °F | 4.79 in. |
| April | 49.5 °F | 70.5 °F | 5.38 in. |
| May | 60.0 °F | 79.4 °F | 5.41 in. |
| June | 68.2 °F | 87.6 °F | 3.81 in. |
| July | 71.5 °F | 90.1 °F | 3.98 in. |
| August | 69.2 °F | 89.1 °F | 3.01 in. |
| September | 61.5 °F | 83.3 °F | 3.42 in. |
| October | 49.8 °F | 72.7 °F | 4.1 in. |
| November | 39.5 °F | 59.0 °F | 4.44 in. |
| December | 32.0 °F | 48.1 °F | 4.71 in. |
| Annual | 50.1 °F | 69.4 °F | 50.74 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 |