Cliffside, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.7 °C (low) to 22.4 °C (high). Annual precipitation averages 1270.8 Millimeters. Cliffside is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.6 °C | 11.2 °C | 101.35 mm |
| February | -0.3 °C | 13.4 °C | 87.63 mm |
| March | 3.2 °C | 17.8 °C | 117.86 mm |
| April | 7.7 °C | 22.8 °C | 109.47 mm |
| May | 12.8 °C | 26.9 °C | 99.82 mm |
| June | 17.6 °C | 30.6 °C | 113.03 mm |
| July | 19.7 °C | 32.5 °C | 121.16 mm |
| August | 19.2 °C | 31.6 °C | 117.35 mm |
| September | 15.7 °C | 28.7 °C | 103.12 mm |
| October | 8.6 °C | 23.3 °C | 91.44 mm |
| November | 2.4 °C | 17.1 °C | 94.23 mm |
| December | -0.2 °C | 12.6 °C | 114.3 mm |
| Annual | 8.7 °C | 22.4 °C | 1270.76 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |