Brooksville, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.7 °C (low) to 27.8 °C (high). Annual precipitation averages 1380.2 Millimeters. Brooksville is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 11 - Jan. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.8 °C | 21.5 °C | 82.55 mm |
| February | 9.4 °C | 23.1 °C | 71.88 mm |
| March | 11.4 °C | 25.6 °C | 83.06 mm |
| April | 14.7 °C | 27.9 °C | 74.68 mm |
| May | 18.1 °C | 30.8 °C | 84.84 mm |
| June | 21.3 °C | 32.1 °C | 213.61 mm |
| July | 22.3 °C | 32.3 °C | 225.55 mm |
| August | 22.3 °C | 32.3 °C | 207.01 mm |
| September | 21.6 °C | 31.6 °C | 159.51 mm |
| October | 17.7 °C | 28.8 °C | 63.5 mm |
| November | 12.6 °C | 25.3 °C | 44.45 mm |
| December | 9.6 °C | 22.7 °C | 69.6 mm |
| Annual | 15.7 °C | 27.8 °C | 1380.24 mm |
| Average First Frost Date | Jan. 11 - Jan. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |