Umatilla, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 60.1 °F (low) to 82.2 °F (high). Annual precipitation averages 54 Inches. Umatilla is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 45.2 °F | 69.6 °F | 2.99 in. |
| February | 48.1 °F | 72.5 °F | 2.44 in. |
| March | 52.0 °F | 77.3 °F | 3.4 in. |
| April | 58.1 °F | 83.0 °F | 2.76 in. |
| May | 64.5 °F | 87.8 °F | 3.63 in. |
| June | 70.8 °F | 90.7 °F | 7.98 in. |
| July | 72.6 °F | 91.8 °F | 7.43 in. |
| August | 72.8 °F | 91.7 °F | 8.36 in. |
| September | 70.8 °F | 89.1 °F | 6.82 in. |
| October | 63.6 °F | 83.9 °F | 3.42 in. |
| November | 54.2 °F | 76.8 °F | 2.11 in. |
| December | 48.8 °F | 71.8 °F | 2.62 in. |
| Annual | 60.1 °F | 82.2 °F | 53.96 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 9a : 20°F to 25°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |