Thomasville, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44.1 °F (low) to 69.1 °F (high). Annual precipitation averages 48.1 Inches. Thomasville 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 | 22.6 °F | 45.3 °F | 2.97 in. |
| February | 25.7 °F | 50.3 °F | 3.15 in. |
| March | 33.8 °F | 60.1 °F | 4.49 in. |
| April | 43.5 °F | 70.8 °F | 5.41 in. |
| May | 53.3 °F | 77.8 °F | 5.47 in. |
| June | 61.8 °F | 85.7 °F | 3.72 in. |
| July | 65.8 °F | 89.7 °F | 4.01 in. |
| August | 64.4 °F | 89.3 °F | 3.6 in. |
| September | 55.6 °F | 82.0 °F | 3.86 in. |
| October | 43.1 °F | 71.3 °F | 3.66 in. |
| November | 33.4 °F | 58.7 °F | 4.41 in. |
| December | 25.8 °F | 47.9 °F | 3.37 in. |
| Annual | 44.1 °F | 69.1 °F | 48.12 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 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |