Gardner, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 61.8 °F (low) to 83.8 °F (high). Annual precipitation averages 53.1 Inches. Gardner is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 48.8 °F | 73.5 °F | 2.35 in. |
| February | 51.3 °F | 76.2 °F | 2.1 in. |
| March | 54.4 °F | 79.7 °F | 2.63 in. |
| April | 59.3 °F | 84.1 °F | 2.66 in. |
| May | 64.9 °F | 88.4 °F | 3.88 in. |
| June | 70.7 °F | 90.5 °F | 9.1 in. |
| July | 72.2 °F | 91.3 °F | 7.99 in. |
| August | 72.9 °F | 91.5 °F | 8.26 in. |
| September | 71.9 °F | 89.9 °F | 7.32 in. |
| October | 65.6 °F | 85.5 °F | 3.05 in. |
| November | 57.1 °F | 79.8 °F | 1.76 in. |
| December | 52.4 °F | 75.6 °F | 2.0 in. |
| Annual | 61.8 °F | 83.8 °F | 53.1 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |