Wewahitchka, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.5 °C (low) to 26.2 °C (high). Annual precipitation averages 1602 Millimeters. Wewahitchka is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.4 °C | 17.8 °C | 121.92 mm |
| February | 6.1 °C | 19.8 °C | 122.68 mm |
| March | 9.1 °C | 23.1 °C | 137.67 mm |
| April | 12.3 °C | 26.4 °C | 110.49 mm |
| May | 16.6 °C | 29.9 °C | 92.96 mm |
| June | 20.8 °C | 32.2 °C | 172.21 mm |
| July | 22.1 °C | 32.8 °C | 207.77 mm |
| August | 22.1 °C | 32.4 °C | 205.74 mm |
| September | 20.1 °C | 30.9 °C | 158.75 mm |
| October | 14.5 °C | 27.3 °C | 89.66 mm |
| November | 8.6 °C | 22.7 °C | 84.07 mm |
| December | 5.8 °C | 19.1 °C | 98.04 mm |
| Annual | 13.5 °C | 26.2 °C | 1601.96 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |