Newport, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.5 °C (low) to 21.4 °C (high). Annual precipitation averages 1298.2 Millimeters. Newport is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.1 °C | 8.2 °C | 93.47 mm |
| February | 0.6 °C | 10.9 °C | 99.57 mm |
| March | 4.9 °C | 16.1 °C | 125.48 mm |
| April | 10.2 °C | 21.7 °C | 137.41 mm |
| May | 15.7 °C | 26.6 °C | 138.94 mm |
| June | 20.4 °C | 31.1 °C | 88.65 mm |
| July | 22.2 °C | 32.6 °C | 100.58 mm |
| August | 21 °C | 32.1 °C | 80.26 mm |
| September | 16.6 °C | 28.7 °C | 84.33 mm |
| October | 9.9 °C | 23.1 °C | 102.87 mm |
| November | 4.6 °C | 15.6 °C | 122.94 mm |
| December | 0.6 °C | 9.9 °C | 123.7 mm |
| Annual | 10.5 °C | 21.4 °C | 1298.2 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 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 |