Littleton, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21.4 °C (high). Annual precipitation averages 1207.8 Millimeters. Littleton is located in USDA Plant Hardiness Zone 7b. 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 | -1.6 °C | 9.9 °C | 91.44 mm |
| February | -0.7 °C | 12.1 °C | 70.87 mm |
| March | 2.7 °C | 15.9 °C | 107.19 mm |
| April | 8.1 °C | 21.6 °C | 89.92 mm |
| May | 13.2 °C | 25.8 °C | 89.92 mm |
| June | 17.9 °C | 30.1 °C | 117.35 mm |
| July | 20.2 °C | 32 °C | 126.49 mm |
| August | 19.3 °C | 30.9 °C | 120.4 mm |
| September | 15.9 °C | 27.8 °C | 134.11 mm |
| October | 9.2 °C | 22.2 °C | 89.15 mm |
| November | 3.4 °C | 16.4 °C | 83.82 mm |
| December | 0.2 °C | 11.8 °C | 87.12 mm |
| Annual | 9 °C | 21.4 °C | 1207.78 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |