New Paltz, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.2 °C (low) to 16.3 °C (high). Annual precipitation averages 1229.6 Millimeters. New Paltz is located in USDA Plant Hardiness Zone 6b. 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 | -8.4 °C | 2.2 °C | 88.9 mm |
| February | -7.6 °C | 3.7 °C | 70.61 mm |
| March | -3 °C | 8.4 °C | 96.01 mm |
| April | 3.1 °C | 16 °C | 97.79 mm |
| May | 8.8 °C | 22.1 °C | 94.74 mm |
| June | 13.8 °C | 26.8 °C | 115.57 mm |
| July | 16.6 °C | 29.6 °C | 118.36 mm |
| August | 15.7 °C | 28.7 °C | 113.03 mm |
| September | 11.4 °C | 24.6 °C | 118.62 mm |
| October | 5.2 °C | 17.6 °C | 117.6 mm |
| November | -0.2 °C | 10.9 °C | 90.68 mm |
| December | -4.9 °C | 4.8 °C | 107.7 mm |
| Annual | 4.2 °C | 16.3 °C | 1229.61 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |