Sequatchie, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 21.8 °C (high). Annual precipitation averages 1450.1 Millimeters. Sequatchie is located in USDA Plant Hardiness Zone 8a. 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 | -1.2 °C | 10 °C | 133.1 mm |
| February | 0.7 °C | 12.5 °C | 136.14 mm |
| March | 4.1 °C | 17.2 °C | 134.87 mm |
| April | 8.4 °C | 22.4 °C | 122.68 mm |
| May | 13.7 °C | 26.3 °C | 111 mm |
| June | 18.1 °C | 29.9 °C | 113.79 mm |
| July | 20.3 °C | 31.7 °C | 123.95 mm |
| August | 19.8 °C | 31.4 °C | 95 mm |
| September | 16.2 °C | 28.7 °C | 107.44 mm |
| October | 9.2 °C | 23 °C | 87.63 mm |
| November | 3 °C | 16.6 °C | 125.98 mm |
| December | 0.4 °C | 11.8 °C | 158.5 mm |
| Annual | 9.4 °C | 21.8 °C | 1450.08 mm |
| 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 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |