Holley, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.1 °C (low) to 25 °C (high). Annual precipitation averages 1719.8 Millimeters. Holley 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 Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.8 °C | 15.9 °C | 145.8 mm |
| February | 7.4 °C | 17.8 °C | 128.02 mm |
| March | 10.8 °C | 20.9 °C | 133.86 mm |
| April | 14.4 °C | 24.4 °C | 143.51 mm |
| May | 18.8 °C | 28.6 °C | 100.84 mm |
| June | 22.8 °C | 31.3 °C | 166.62 mm |
| July | 23.7 °C | 32.3 °C | 191.26 mm |
| August | 23.7 °C | 32.1 °C | 193.55 mm |
| September | 21.5 °C | 30.8 °C | 159.51 mm |
| October | 15.8 °C | 26.7 °C | 109.47 mm |
| November | 9.8 °C | 21.2 °C | 115.57 mm |
| December | 7.2 °C | 17.4 °C | 131.83 mm |
| Annual | 15.1 °C | 25 °C | 1719.84 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |