Frostproof, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17 °C (low) to 28.8 °C (high). Annual precipitation averages 1360.2 Millimeters. Frostproof is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.6 °C | 22.7 °C | 64.77 mm |
| February | 11.2 °C | 24.4 °C | 56.39 mm |
| March | 13.1 °C | 26.4 °C | 72.39 mm |
| April | 15.9 °C | 29.1 °C | 68.07 mm |
| May | 19 °C | 31.6 °C | 93.47 mm |
| June | 21.8 °C | 32.8 °C | 226.31 mm |
| July | 22.8 °C | 33.3 °C | 203.96 mm |
| August | 23 °C | 33.3 °C | 209.55 mm |
| September | 22.3 °C | 32.3 °C | 180.85 mm |
| October | 19.2 °C | 29.8 °C | 81.53 mm |
| November | 14.5 °C | 26.3 °C | 46.74 mm |
| December | 11.6 °C | 23.9 °C | 56.13 mm |
| Annual | 17 °C | 28.8 °C | 1360.16 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |