Crystal Lake, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 63 °F (low) to 83.5 °F (high). Annual precipitation averages 54.3 Inches. Crystal Lake is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 49.5 °F | 72.2 °F | 2.86 in. |
| February | 52.4 °F | 75.2 °F | 2.32 in. |
| March | 56.0 °F | 79.4 °F | 2.95 in. |
| April | 61.3 °F | 83.9 °F | 2.94 in. |
| May | 66.9 °F | 88.5 °F | 3.67 in. |
| June | 72.0 °F | 90.8 °F | 8.53 in. |
| July | 73.8 °F | 91.5 °F | 8.26 in. |
| August | 74.0 °F | 91.6 °F | 8.1 in. |
| September | 72.6 °F | 90.0 °F | 7.32 in. |
| October | 66.5 °F | 85.2 °F | 2.86 in. |
| November | 57.9 °F | 78.8 °F | 1.79 in. |
| December | 52.7 °F | 74.3 °F | 2.73 in. |
| Annual | 63 °F | 83.5 °F | 54.33 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 |