Murphy, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.1 °C (low) to 20.5 °C (high). Annual precipitation averages 1499.6 Millimeters. Murphy is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.9 °C | 9.5 °C | 136.14 mm |
| February | -1.2 °C | 11.6 °C | 129.29 mm |
| March | 1.9 °C | 15.9 °C | 132.08 mm |
| April | 5.8 °C | 20.9 °C | 123.19 mm |
| May | 11.1 °C | 24.7 °C | 121.16 mm |
| June | 15.5 °C | 28.1 °C | 132.84 mm |
| July | 17.7 °C | 29.7 °C | 138.18 mm |
| August | 17.1 °C | 29.4 °C | 114.05 mm |
| September | 13.7 °C | 26.8 °C | 114.55 mm |
| October | 6.9 °C | 21.6 °C | 88.65 mm |
| November | 1.3 °C | 16.1 °C | 117.86 mm |
| December | -1.2 °C | 11.2 °C | 151.64 mm |
| Annual | 7.1 °C | 20.5 °C | 1499.63 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |