Lower Grand Lagoon, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.2 °C (low) to 24.4 °C (high). Annual precipitation averages 1535.2 Millimeters. Lower Grand Lagoon is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.9 °C | 16.2 °C | 110.74 mm |
| February | 8.6 °C | 17.7 °C | 114.81 mm |
| March | 11.8 °C | 20.3 °C | 131.06 mm |
| April | 15.7 °C | 23.6 °C | 112.78 mm |
| May | 19.8 °C | 27.2 °C | 68.83 mm |
| June | 23.5 °C | 30.1 °C | 139.7 mm |
| July | 24.5 °C | 30.9 °C | 177.55 mm |
| August | 24.3 °C | 30.9 °C | 195.33 mm |
| September | 22.3 °C | 29.9 °C | 146.05 mm |
| October | 17.3 °C | 26.3 °C | 103.63 mm |
| November | 11.3 °C | 21.4 °C | 123.44 mm |
| December | 8.5 °C | 17.7 °C | 111.25 mm |
| Annual | 16.2 °C | 24.4 °C | 1535.17 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |