Oliver Springs, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21 °C (high). Annual precipitation averages 1463.3 Millimeters. Oliver Springs 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 | -1.8 °C | 8.7 °C | 129.29 mm |
| February | -0.2 °C | 11.2 °C | 138.43 mm |
| March | 3.3 °C | 16.2 °C | 133.6 mm |
| April | 8 °C | 21.6 °C | 135.38 mm |
| May | 13.3 °C | 25.9 °C | 107.19 mm |
| June | 17.8 °C | 29.6 °C | 124.21 mm |
| July | 20.1 °C | 31.1 °C | 151.89 mm |
| August | 19.3 °C | 30.8 °C | 91.95 mm |
| September | 15.8 °C | 28.3 °C | 105.92 mm |
| October | 8.9 °C | 22.3 °C | 82.55 mm |
| November | 2.9 °C | 15.7 °C | 111.51 mm |
| December | 0.1 °C | 10.4 °C | 151.38 mm |
| Annual | 9 °C | 21 °C | 1463.3 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |