Blountstown, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.3 °C (low) to 26.5 °C (high). Annual precipitation averages 1493.5 Millimeters. Blountstown is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.9 °C | 17.5 °C | 120.65 mm |
| February | 5.7 °C | 19.7 °C | 112.01 mm |
| March | 8.8 °C | 23.2 °C | 132.33 mm |
| April | 12.3 °C | 26.8 °C | 112.27 mm |
| May | 16.8 °C | 30.8 °C | 96.52 mm |
| June | 20.8 °C | 32.8 °C | 158.5 mm |
| July | 22 °C | 33.6 °C | 161.04 mm |
| August | 21.9 °C | 33 °C | 157.23 mm |
| September | 19.8 °C | 31.4 °C | 169.93 mm |
| October | 14.1 °C | 27.8 °C | 83.57 mm |
| November | 8.3 °C | 22.4 °C | 88.39 mm |
| December | 5.4 °C | 18.8 °C | 101.09 mm |
| Annual | 13.3 °C | 26.5 °C | 1493.53 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |