Tell City, Indiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.7 °F (low) to 67.1 °F (high). Annual precipitation averages 50.5 Inches. Tell City is located in USDA Plant Hardiness Zone 7a. 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 | 25.8 °F | 42.5 °F | 3.65 in. |
| February | 28.1 °F | 47.1 °F | 3.56 in. |
| March | 35.6 °F | 56.7 °F | 4.67 in. |
| April | 45.7 °F | 68.1 °F | 5.07 in. |
| May | 55.8 °F | 76.7 °F | 5.64 in. |
| June | 64.0 °F | 84.6 °F | 4.85 in. |
| July | 67.6 °F | 87.5 °F | 4.28 in. |
| August | 65.9 °F | 87.0 °F | 3.08 in. |
| September | 58.7 °F | 81.4 °F | 3.61 in. |
| October | 46.9 °F | 70.4 °F | 3.8 in. |
| November | 36.9 °F | 57.0 °F | 3.9 in. |
| December | 29.6 °F | 46.5 °F | 4.38 in. |
| Annual | 46.7 °F | 67.1 °F | 50.49 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |