Arlington, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.6 °F (low) to 71.6 °F (high). Annual precipitation averages 55.6 Inches. Arlington 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 | 31.0 °F | 48.6 °F | 4.08 in. |
| February | 34.3 °F | 53.6 °F | 4.61 in. |
| March | 41.9 °F | 62.6 °F | 5.52 in. |
| April | 51.0 °F | 72.4 °F | 5.72 in. |
| May | 60.9 °F | 80.6 °F | 5.64 in. |
| June | 68.8 °F | 88.1 °F | 4.47 in. |
| July | 72.1 °F | 90.9 °F | 4.31 in. |
| August | 70.2 °F | 90.3 °F | 3.21 in. |
| September | 62.9 °F | 84.7 °F | 3.77 in. |
| October | 51.2 °F | 74.1 °F | 4.04 in. |
| November | 40.7 °F | 61.5 °F | 4.56 in. |
| December | 33.9 °F | 51.7 °F | 5.68 in. |
| Annual | 51.6 °F | 71.6 °F | 55.61 in. |
| 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 : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |