Theodosia, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.6 °F (low) to 69.9 °F (high). Annual precipitation averages 45.9 Inches. Theodosia 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 | 25.8 °F | 46.7 °F | 2.88 in. |
| February | 28.9 °F | 51.6 °F | 2.78 in. |
| March | 36.5 °F | 60.5 °F | 4.38 in. |
| April | 45.6 °F | 71.1 °F | 5.15 in. |
| May | 55.0 °F | 77.8 °F | 5.0 in. |
| June | 63.9 °F | 86.3 °F | 3.88 in. |
| July | 67.5 °F | 90.5 °F | 3.73 in. |
| August | 65.7 °F | 90.0 °F | 3.2 in. |
| September | 57.9 °F | 82.9 °F | 3.85 in. |
| October | 46.4 °F | 72.3 °F | 3.6 in. |
| November | 36.8 °F | 59.9 °F | 4.21 in. |
| December | 28.8 °F | 49.4 °F | 3.2 in. |
| Annual | 46.6 °F | 69.9 °F | 45.86 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 |