Oviedo, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17 °C (low) to 27.9 °C (high). Annual precipitation averages 1413 Millimeters. Oviedo is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.2 °C | 21.3 °C | 74.42 mm |
| February | 10.6 °C | 22.8 °C | 62.23 mm |
| March | 12.8 °C | 25.2 °C | 87.88 mm |
| April | 15.8 °C | 28.1 °C | 73.15 mm |
| May | 19.2 °C | 30.8 °C | 98.81 mm |
| June | 22.3 °C | 32.3 °C | 207.01 mm |
| July | 23.2 °C | 33.2 °C | 192.02 mm |
| August | 23.4 °C | 33.1 °C | 210.82 mm |
| September | 22.6 °C | 31.7 °C | 182.63 mm |
| October | 19.1 °C | 28.9 °C | 102.62 mm |
| November | 14.3 °C | 25.2 °C | 55.63 mm |
| December | 11.1 °C | 22.5 °C | 65.79 mm |
| Annual | 17 °C | 27.9 °C | 1413.01 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |