Lake Hamilton, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 63 °F (low) to 83.6 °F (high). Annual precipitation averages 52.2 Inches. Lake Hamilton is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 49.6 °F | 72.2 °F | 2.64 in. |
| February | 52.5 °F | 75.3 °F | 2.21 in. |
| March | 56.2 °F | 79.3 °F | 2.87 in. |
| April | 61.4 °F | 84.1 °F | 2.66 in. |
| May | 67.0 °F | 88.6 °F | 3.6 in. |
| June | 71.9 °F | 91.2 °F | 8.51 in. |
| July | 73.5 °F | 91.8 °F | 7.55 in. |
| August | 73.8 °F | 91.9 °F | 7.88 in. |
| September | 72.4 °F | 90.1 °F | 6.94 in. |
| October | 66.7 °F | 85.5 °F | 3.03 in. |
| November | 58.2 °F | 78.9 °F | 1.77 in. |
| December | 53.0 °F | 74.4 °F | 2.52 in. |
| Annual | 63 °F | 83.6 °F | 52.18 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |