Mooresburg, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.3 °C (low) to 20.6 °C (high). Annual precipitation averages 1189.2 Millimeters. Mooresburg 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 | -2.6 °C | 8.1 °C | 109.22 mm |
| February | -0.8 °C | 10.7 °C | 107.7 mm |
| March | 2.5 °C | 15.7 °C | 112.52 mm |
| April | 7.3 °C | 21.2 °C | 111 mm |
| May | 12.7 °C | 25.4 °C | 96.01 mm |
| June | 17.3 °C | 29.4 °C | 104.14 mm |
| July | 19.4 °C | 30.9 °C | 116.59 mm |
| August | 18.6 °C | 30.6 °C | 83.57 mm |
| September | 15.1 °C | 27.7 °C | 78.23 mm |
| October | 8.2 °C | 21.8 °C | 63.25 mm |
| November | 2.3 °C | 15.2 °C | 84.58 mm |
| December | -0.6 °C | 9.9 °C | 122.43 mm |
| Annual | 8.3 °C | 20.6 °C | 1189.24 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 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 |