Orme, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.3 °F (low) to 69.6 °F (high). Annual precipitation averages 66.1 Inches. Orme is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.6 °F | 48.2 °F | 6.29 in. |
| February | 32.5 °F | 52.9 °F | 5.97 in. |
| March | 39.2 °F | 61.4 °F | 6.54 in. |
| April | 46.9 °F | 70.7 °F | 6.19 in. |
| May | 55.9 °F | 77.7 °F | 5.15 in. |
| June | 63.5 °F | 84.3 °F | 5.29 in. |
| July | 67.2 °F | 87.4 °F | 5.38 in. |
| August | 66.1 °F | 86.8 °F | 4.09 in. |
| September | 60.0 °F | 81.8 °F | 4.77 in. |
| October | 48.1 °F | 71.6 °F | 3.76 in. |
| November | 38.1 °F | 60.3 °F | 5.47 in. |
| December | 32.6 °F | 51.6 °F | 7.21 in. |
| Annual | 48.3 °F | 69.6 °F | 66.11 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |