Bristol, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.3 °F (low) to 79.2 °F (high). Annual precipitation averages 58.7 Inches. Bristol is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.8 °F | 63.2 °F | 4.85 in. |
| February | 42.6 °F | 66.9 °F | 4.43 in. |
| March | 47.8 °F | 73.5 °F | 5.21 in. |
| April | 54.1 °F | 79.8 °F | 4.4 in. |
| May | 62.5 °F | 86.9 °F | 3.75 in. |
| June | 69.5 °F | 90.5 °F | 6.23 in. |
| July | 71.6 °F | 91.9 °F | 6.36 in. |
| August | 71.5 °F | 90.9 °F | 6.18 in. |
| September | 67.8 °F | 88.0 °F | 6.56 in. |
| October | 57.9 °F | 81.5 °F | 3.28 in. |
| November | 47.4 °F | 72.0 °F | 3.48 in. |
| December | 42.5 °F | 65.3 °F | 3.99 in. |
| Annual | 56.3 °F | 79.2 °F | 58.72 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |