Newport Center, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.4 °C (low) to 11.5 °C (high). Annual precipitation averages 1192.5 Millimeters. Newport Center 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 | -14.8 °C | -4.2 °C | 83.57 mm |
| February | -14 °C | -2.4 °C | 70.87 mm |
| March | -8.4 °C | 2.7 °C | 79.25 mm |
| April | -0.4 °C | 10.7 °C | 91.69 mm |
| May | 6.1 °C | 18.4 °C | 105.41 mm |
| June | 11.2 °C | 23.3 °C | 118.87 mm |
| July | 13.8 °C | 25.7 °C | 123.44 mm |
| August | 12.9 °C | 24.8 °C | 116.33 mm |
| September | 8.8 °C | 20.6 °C | 97.03 mm |
| October | 2.8 °C | 13.1 °C | 117.86 mm |
| November | -3.1 °C | 5.8 °C | 91.95 mm |
| December | -9.6 °C | -0.6 °C | 96.27 mm |
| Annual | 0.4 °C | 11.5 °C | 1192.54 mm |
| 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 : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |