Denver, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 21.5 °C (high). Annual precipitation averages 1168.4 Millimeters. Denver is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.2 °C | 10.3 °C | 96.01 mm |
| February | 0.2 °C | 12.6 °C | 81.53 mm |
| March | 3.8 °C | 16.8 °C | 105.41 mm |
| April | 8.7 °C | 21.9 °C | 100.84 mm |
| May | 13.7 °C | 25.7 °C | 97.28 mm |
| June | 18.2 °C | 29.7 °C | 99.57 mm |
| July | 20.3 °C | 31.4 °C | 104.9 mm |
| August | 19.6 °C | 30.6 °C | 113.03 mm |
| September | 16.2 °C | 27.6 °C | 102.87 mm |
| October | 9.4 °C | 22.4 °C | 84.33 mm |
| November | 3.3 °C | 16.6 °C | 84.58 mm |
| December | 0.3 °C | 11.9 °C | 98.04 mm |
| Annual | 9.4 °C | 21.5 °C | 1168.39 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |