Olivet, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.8 °F (low) to 71.5 °F (high). Annual precipitation averages 55.8 Inches. Olivet 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 | 29.2 °F | 49.3 °F | 4.74 in. |
| February | 32.3 °F | 54.3 °F | 5.0 in. |
| March | 39.1 °F | 63.0 °F | 5.13 in. |
| April | 47.5 °F | 72.4 °F | 5.47 in. |
| May | 57.5 °F | 80.0 °F | 5.52 in. |
| June | 65.4 °F | 87.0 °F | 4.56 in. |
| July | 68.8 °F | 90.0 °F | 4.57 in. |
| August | 67.2 °F | 89.5 °F | 3.77 in. |
| September | 60.2 °F | 84.5 °F | 3.58 in. |
| October | 48.2 °F | 74.1 °F | 3.84 in. |
| November | 37.8 °F | 62.0 °F | 4.21 in. |
| December | 32.2 °F | 52.0 °F | 5.42 in. |
| Annual | 48.8 °F | 71.5 °F | 55.81 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |