Fanning Springs, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.2 °C (low) to 26.9 °C (high). Annual precipitation averages 1415 Millimeters. Fanning Springs 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 | 5.3 °C | 19.1 °C | 98.3 mm |
| February | 7.2 °C | 21 °C | 82.3 mm |
| March | 9.6 °C | 23.9 °C | 101.09 mm |
| April | 12.9 °C | 27.1 °C | 70.1 mm |
| May | 16.8 °C | 30.7 °C | 74.93 mm |
| June | 21.1 °C | 32.2 °C | 195.07 mm |
| July | 22.2 °C | 32.8 °C | 208.79 mm |
| August | 22.4 °C | 32.6 °C | 224.28 mm |
| September | 20.7 °C | 31.4 °C | 152.91 mm |
| October | 15.6 °C | 28.1 °C | 78.23 mm |
| November | 9.8 °C | 23.8 °C | 50.8 mm |
| December | 6.8 °C | 20.4 °C | 78.23 mm |
| Annual | 14.2 °C | 26.9 °C | 1415.03 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 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |