Newport, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.2 °C (low) to 20.9 °C (high). Annual precipitation averages 1181.4 Millimeters. Newport is located in USDA Plant Hardiness Zone 7b. 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 | -2.4 °C | 8.8 °C | 104.14 mm |
| February | -0.8 °C | 11.2 °C | 100.58 mm |
| March | 2.6 °C | 16.1 °C | 108.71 mm |
| April | 7.2 °C | 21.4 °C | 104.65 mm |
| May | 12.6 °C | 25.7 °C | 105.92 mm |
| June | 17.2 °C | 29.3 °C | 108.2 mm |
| July | 19.3 °C | 30.9 °C | 113.03 mm |
| August | 18.6 °C | 30.6 °C | 97.28 mm |
| September | 14.9 °C | 27.9 °C | 80.01 mm |
| October | 8.1 °C | 22.2 °C | 62.23 mm |
| November | 1.9 °C | 15.7 °C | 81.79 mm |
| December | -0.8 °C | 10.6 °C | 114.81 mm |
| Annual | 8.2 °C | 20.9 °C | 1181.35 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |