Fort Walton Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 60.3 °F (low) to 76.1 °F (high). Annual precipitation averages 65.8 Inches. Fort Walton Beach 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 | 43.1 °F | 60.4 °F | 6.2 in. |
| February | 46.2 °F | 63.2 °F | 5.31 in. |
| March | 52.5 °F | 68.9 °F | 4.97 in. |
| April | 59.2 °F | 74.2 °F | 6.23 in. |
| May | 67.0 °F | 81.8 °F | 3.33 in. |
| June | 74.0 °F | 87.2 °F | 5.6 in. |
| July | 75.7 °F | 89.1 °F | 6.61 in. |
| August | 75.3 °F | 88.5 °F | 7.53 in. |
| September | 71.6 °F | 86.8 °F | 5.77 in. |
| October | 61.9 °F | 79.7 °F | 4.68 in. |
| November | 51.0 °F | 70.2 °F | 4.35 in. |
| December | 45.6 °F | 63.3 °F | 5.26 in. |
| Annual | 60.3 °F | 76.1 °F | 65.84 in. |
| 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 : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |