Welaka, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.2 °C (low) to 27.1 °C (high). Annual precipitation averages 1366.5 Millimeters. Welaka is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.9 °C | 19.8 °C | 82.8 mm |
| February | 8.3 °C | 21.5 °C | 70.87 mm |
| March | 10.7 °C | 24.3 °C | 85.09 mm |
| April | 13.9 °C | 27.4 °C | 71.12 mm |
| May | 17.6 °C | 30.5 °C | 95.76 mm |
| June | 21.2 °C | 32.3 °C | 198.12 mm |
| July | 22.2 °C | 32.9 °C | 179.83 mm |
| August | 22.4 °C | 32.8 °C | 191.52 mm |
| September | 21.3 °C | 31.2 °C | 174.75 mm |
| October | 17.2 °C | 27.9 °C | 93.73 mm |
| November | 12 °C | 24 °C | 56.64 mm |
| December | 8.8 °C | 21.1 °C | 66.29 mm |
| Annual | 15.2 °C | 27.1 °C | 1366.52 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |