Bolivar, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 21.7 °C (high). Annual precipitation averages 1407.4 Millimeters. Bolivar 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °C | 9.4 °C | 111.25 mm |
| February | 0.3 °C | 12.1 °C | 125.22 mm |
| March | 4.4 °C | 16.9 °C | 146.81 mm |
| April | 9.2 °C | 22.3 °C | 138.94 mm |
| May | 14.6 °C | 26.4 °C | 132.33 mm |
| June | 19.1 °C | 30.3 °C | 111.51 mm |
| July | 20.9 °C | 32 °C | 109.22 mm |
| August | 19.9 °C | 31.9 °C | 86.87 mm |
| September | 16 °C | 28.8 °C | 100.58 mm |
| October | 9.3 °C | 23.1 °C | 100.33 mm |
| November | 3.7 °C | 16.5 °C | 102.87 mm |
| December | 0.4 °C | 11.1 °C | 141.48 mm |
| Annual | 9.7 °C | 21.7 °C | 1407.41 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 |