Chesterfield, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 21.6 °C (high). Annual precipitation averages 1415 Millimeters. Chesterfield is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2 °C | 9.1 °C | 119.38 mm |
| February | -0.3 °C | 11.9 °C | 123.95 mm |
| March | 3.4 °C | 16.9 °C | 135.13 mm |
| April | 8.2 °C | 22.3 °C | 137.16 mm |
| May | 13.9 °C | 26.3 °C | 143.26 mm |
| June | 18.4 °C | 30.2 °C | 109.98 mm |
| July | 20.5 °C | 31.8 °C | 107.19 mm |
| August | 19.4 °C | 31.7 °C | 94.49 mm |
| September | 15.3 °C | 28.7 °C | 105.41 mm |
| October | 8.4 °C | 23.1 °C | 96.01 mm |
| November | 2.5 °C | 16.3 °C | 107.44 mm |
| December | -0.5 °C | 10.7 °C | 135.64 mm |
| Annual | 8.9 °C | 21.6 °C | 1415.04 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |