Madisonville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.6 °F (low) to 69.8 °F (high). Annual precipitation averages 56.5 Inches. Madisonville is located in USDA Plant Hardiness Zone 7b. 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 | 28.8 °F | 48.2 °F | 5.39 in. |
| February | 31.3 °F | 52.4 °F | 4.89 in. |
| March | 37.8 °F | 61.3 °F | 5.25 in. |
| April | 46.0 °F | 70.5 °F | 4.71 in. |
| May | 55.3 °F | 78.9 °F | 4.25 in. |
| June | 63.5 °F | 84.9 °F | 4.92 in. |
| July | 67.2 °F | 87.9 °F | 5.61 in. |
| August | 66.1 °F | 87.4 °F | 4.01 in. |
| September | 59.6 °F | 82.8 °F | 4.03 in. |
| October | 47.1 °F | 71.9 °F | 3.07 in. |
| November | 36.3 °F | 60.4 °F | 4.78 in. |
| December | 31.9 °F | 51.4 °F | 5.61 in. |
| Annual | 47.6 °F | 69.8 °F | 56.52 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 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 |