Shiloh, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 22 °C (high). Annual precipitation averages 1457.7 Millimeters. Shiloh 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 | -1.5 °C | 9.8 °C | 124.71 mm |
| February | 0.2 °C | 12.4 °C | 133.6 mm |
| March | 4.1 °C | 17.3 °C | 138.68 mm |
| April | 8.7 °C | 22.6 °C | 142.75 mm |
| May | 14.1 °C | 26.8 °C | 135.38 mm |
| June | 18.6 °C | 30.6 °C | 109.98 mm |
| July | 20.4 °C | 32.3 °C | 114.81 mm |
| August | 19.6 °C | 32.1 °C | 104.39 mm |
| September | 15.7 °C | 29.1 °C | 102.36 mm |
| October | 9.1 °C | 23.3 °C | 99.06 mm |
| November | 3.4 °C | 16.7 °C | 108.71 mm |
| December | 0.2 °C | 11.3 °C | 143.26 mm |
| Annual | 9.4 °C | 22 °C | 1457.69 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |