Ossipee, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.8 °C (low) to 21.4 °C (high). Annual precipitation averages 1182.6 Millimeters. Ossipee is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.9 °C | 9.9 °C | 92.71 mm |
| February | -0.7 °C | 12 °C | 74.68 mm |
| March | 3.1 °C | 16.3 °C | 104.9 mm |
| April | 8 °C | 21.9 °C | 99.06 mm |
| May | 13.1 °C | 25.9 °C | 95.5 mm |
| June | 17.7 °C | 30.1 °C | 110.24 mm |
| July | 20.1 °C | 31.8 °C | 113.54 mm |
| August | 19.2 °C | 30.9 °C | 104.65 mm |
| September | 15.7 °C | 27.6 °C | 124.71 mm |
| October | 8.6 °C | 22.2 °C | 84.84 mm |
| November | 2.6 °C | 16.4 °C | 86.36 mm |
| December | -0.3 °C | 11.6 °C | 91.44 mm |
| Annual | 8.8 °C | 21.4 °C | 1182.63 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |