Belvidere, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 20.7 °C (high). Annual precipitation averages 1468.9 Millimeters. Belvidere 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 | -1.3 °C | 8.9 °C | 135.89 mm |
| February | -0.1 °C | 11.3 °C | 129.54 mm |
| March | 3.7 °C | 15.9 °C | 134.37 mm |
| April | 8.7 °C | 21.1 °C | 139.7 mm |
| May | 13.6 °C | 25.3 °C | 113.79 mm |
| June | 17.9 °C | 28.9 °C | 147.83 mm |
| July | 19.8 °C | 30.6 °C | 113.54 mm |
| August | 19.1 °C | 30.4 °C | 97.03 mm |
| September | 15.6 °C | 27.6 °C | 112.01 mm |
| October | 9 °C | 22.1 °C | 84.58 mm |
| November | 3.2 °C | 15.6 °C | 108.71 mm |
| December | 0.3 °C | 10.6 °C | 151.89 mm |
| Annual | 9.1 °C | 20.7 °C | 1468.88 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 |