Dyersburg, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.9 °C (low) to 20.9 °C (high). Annual precipitation averages 1379.7 Millimeters. Dyersburg is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.8 °C | 7.8 °C | 103.63 mm |
| February | 0 °C | 10.4 °C | 115.57 mm |
| March | 4.3 °C | 15.4 °C | 130.3 mm |
| April | 9.6 °C | 21.4 °C | 129.54 mm |
| May | 15.3 °C | 26.1 °C | 140.97 mm |
| June | 19.6 °C | 30.3 °C | 122.94 mm |
| July | 21.4 °C | 31.9 °C | 100.33 mm |
| August | 20.3 °C | 31.5 °C | 81.28 mm |
| September | 16.1 °C | 28.4 °C | 91.44 mm |
| October | 9.4 °C | 22.6 °C | 104.65 mm |
| November | 3.9 °C | 15.4 °C | 120.9 mm |
| December | 0.1 °C | 9.6 °C | 138.18 mm |
| Annual | 9.9 °C | 20.9 °C | 1379.73 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |