Newport, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.8 °F (low) to 53 °F (high). Annual precipitation averages 44.1 Inches. Newport is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.1 °F | 24.2 °F | 2.93 in. |
| February | 6.1 °F | 27.9 °F | 2.57 in. |
| March | 16.5 °F | 37.2 °F | 2.84 in. |
| April | 31.0 °F | 51.7 °F | 3.34 in. |
| May | 42.9 °F | 65.6 °F | 3.9 in. |
| June | 52.5 °F | 74.4 °F | 4.49 in. |
| July | 57.2 °F | 78.8 °F | 4.81 in. |
| August | 55.6 °F | 77.1 °F | 4.54 in. |
| September | 47.8 °F | 69.6 °F | 3.71 in. |
| October | 37.1 °F | 56.0 °F | 4.33 in. |
| November | 26.7 °F | 42.7 °F | 3.28 in. |
| December | 15.0 °F | 31.2 °F | 3.35 in. |
| Annual | 32.8 °F | 53 °F | 44.09 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |