Atoka, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.8 °C (low) to 21.5 °C (high). Annual precipitation averages 1405.4 Millimeters. Atoka 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 | -0.7 °C | 8.7 °C | 104.39 mm |
| February | 0.8 °C | 11.4 °C | 117.35 mm |
| March | 5.2 °C | 16.4 °C | 133.35 mm |
| April | 10.3 °C | 21.8 °C | 140.46 mm |
| May | 15.8 °C | 26.6 °C | 147.57 mm |
| June | 20.1 °C | 30.8 °C | 112.27 mm |
| July | 22.1 °C | 32.3 °C | 108.97 mm |
| August | 21.2 °C | 31.9 °C | 83.82 mm |
| September | 17.2 °C | 28.8 °C | 92.2 mm |
| October | 10.8 °C | 23 °C | 101.09 mm |
| November | 5.1 °C | 16.1 °C | 119.38 mm |
| December | 1.1 °C | 10.4 °C | 144.53 mm |
| Annual | 10.8 °C | 21.5 °C | 1405.38 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |