Cross Plains, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.5 °F (low) to 68.3 °F (high). Annual precipitation averages 51.6 Inches. Cross Plains 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 | 27.0 °F | 44.9 °F | 4.0 in. |
| February | 29.9 °F | 49.6 °F | 4.5 in. |
| March | 37.2 °F | 58.6 °F | 4.73 in. |
| April | 46.3 °F | 69.0 °F | 4.96 in. |
| May | 56.3 °F | 77.1 °F | 5.36 in. |
| June | 64.5 °F | 84.8 °F | 4.28 in. |
| July | 68.0 °F | 88.1 °F | 4.25 in. |
| August | 66.3 °F | 87.7 °F | 3.58 in. |
| September | 59.2 °F | 82.0 °F | 3.73 in. |
| October | 47.7 °F | 71.1 °F | 3.66 in. |
| November | 37.2 °F | 58.5 °F | 3.62 in. |
| December | 30.9 °F | 48.4 °F | 4.88 in. |
| Annual | 47.5 °F | 68.3 °F | 51.55 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |