Zephyrhills, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 61.1 °F (low) to 82.8 °F (high). Annual precipitation averages 56.3 Inches. Zephyrhills is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 47.3 °F | 71.1 °F | 3.42 in. |
| February | 50.1 °F | 74.0 °F | 2.52 in. |
| March | 53.4 °F | 78.3 °F | 2.86 in. |
| April | 59.1 °F | 83.3 °F | 3.01 in. |
| May | 65.2 °F | 88.3 °F | 3.33 in. |
| June | 70.9 °F | 90.4 °F | 8.77 in. |
| July | 72.6 °F | 90.8 °F | 8.55 in. |
| August | 73.1 °F | 91.1 °F | 9.03 in. |
| September | 71.3 °F | 89.7 °F | 7.23 in. |
| October | 64.6 °F | 84.7 °F | 3.06 in. |
| November | 55.5 °F | 78.3 °F | 1.83 in. |
| December | 50.3 °F | 73.4 °F | 2.7 in. |
| Annual | 61.1 °F | 82.8 °F | 56.31 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |