Adamsville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.3 °C (low) to 21.9 °C (high). Annual precipitation averages 1432.8 Millimeters. Adamsville 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 | -1.7 °C | 9.6 °C | 120.9 mm |
| February | 0.1 °C | 12.3 °C | 132.08 mm |
| March | 3.9 °C | 17.2 °C | 140.46 mm |
| April | 8.6 °C | 22.5 °C | 141.99 mm |
| May | 14.1 °C | 26.7 °C | 133.35 mm |
| June | 18.5 °C | 30.6 °C | 104.65 mm |
| July | 20.4 °C | 32.3 °C | 109.98 mm |
| August | 19.6 °C | 32 °C | 104.14 mm |
| September | 15.6 °C | 29.1 °C | 96.27 mm |
| October | 9.1 °C | 23.2 °C | 102.11 mm |
| November | 3.4 °C | 16.6 °C | 108.97 mm |
| December | 0.1 °C | 11.1 °C | 137.92 mm |
| Annual | 9.3 °C | 21.9 °C | 1432.82 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 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |