Hernando, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15 °C (low) to 27.7 °C (high). Annual precipitation averages 1407.4 Millimeters. Hernando is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.5 °C | 20.9 °C | 78.23 mm |
| February | 8.2 °C | 22.4 °C | 75.95 mm |
| March | 10.3 °C | 25.2 °C | 87.63 mm |
| April | 13.8 °C | 27.8 °C | 65.02 mm |
| May | 17.4 °C | 30.9 °C | 85.6 mm |
| June | 21.2 °C | 32.3 °C | 204.47 mm |
| July | 22.1 °C | 32.7 °C | 203.45 mm |
| August | 22.3 °C | 32.6 °C | 215.65 mm |
| September | 21.2 °C | 31.9 °C | 175.51 mm |
| October | 16.7 °C | 29 °C | 80.01 mm |
| November | 11.4 °C | 25.2 °C | 52.32 mm |
| December | 8.3 °C | 22 °C | 83.57 mm |
| Annual | 15 °C | 27.7 °C | 1407.41 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |