Poughkeepsie, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.6 °C (low) to 16.4 °C (high). Annual precipitation averages 1119.1 Millimeters. Poughkeepsie is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8 °C | 2.2 °C | 84.58 mm |
| February | -7.2 °C | 3.8 °C | 58.42 mm |
| March | -2.7 °C | 8.7 °C | 81.79 mm |
| April | 3.4 °C | 16.1 °C | 84.84 mm |
| May | 9.1 °C | 22.1 °C | 88.14 mm |
| June | 14.2 °C | 26.7 °C | 111.25 mm |
| July | 17 °C | 29.7 °C | 104.39 mm |
| August | 16.1 °C | 28.7 °C | 111.51 mm |
| September | 11.8 °C | 24.6 °C | 110.49 mm |
| October | 5.6 °C | 17.7 °C | 100.08 mm |
| November | 0.2 °C | 11.1 °C | 88.39 mm |
| December | -4.4 °C | 5 °C | 95.25 mm |
| Annual | 4.6 °C | 16.4 °C | 1119.13 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |