Newport, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.8 °C (low) to 13.5 °C (high). Annual precipitation averages 1239.8 Millimeters. Newport is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.7 °C | -1.3 °C | 86.36 mm |
| February | -10.1 °C | 0.1 °C | 75.95 mm |
| March | -5.6 °C | 4.6 °C | 87.12 mm |
| April | 1.2 °C | 13 °C | 100.33 mm |
| May | 7.5 °C | 20.4 °C | 108.71 mm |
| June | 12.9 °C | 24.8 °C | 123.19 mm |
| July | 15.6 °C | 27.2 °C | 122.17 mm |
| August | 14.7 °C | 26.3 °C | 109.73 mm |
| September | 10.7 °C | 22.4 °C | 105.16 mm |
| October | 4.7 °C | 15.2 °C | 121.67 mm |
| November | -0.7 °C | 7.9 °C | 101.85 mm |
| December | -6.2 °C | 1.6 °C | 97.54 mm |
| Annual | 2.8 °C | 13.5 °C | 1239.78 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |