Mount Carmel, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.7 °C (low) to 20.2 °C (high). Annual precipitation averages 1207.5 Millimeters. Mount Carmel 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 | -2.9 °C | 7.8 °C | 104.14 mm |
| February | -1.4 °C | 10.2 °C | 105.41 mm |
| March | 2.2 °C | 15.2 °C | 113.54 mm |
| April | 6.9 °C | 21.2 °C | 112.52 mm |
| May | 12.1 °C | 25.4 °C | 98.81 mm |
| June | 16.6 °C | 28.8 °C | 107.19 mm |
| July | 18.8 °C | 30.4 °C | 129.29 mm |
| August | 18 °C | 30.1 °C | 93.47 mm |
| September | 14.4 °C | 27.3 °C | 79.76 mm |
| October | 7.7 °C | 21.7 °C | 64.77 mm |
| November | 1.7 °C | 15 °C | 82.55 mm |
| December | -1.2 °C | 9.6 °C | 116.08 mm |
| Annual | 7.7 °C | 20.2 °C | 1207.53 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |