Duanesburg, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.7 °C (low) to 14 °C (high). Annual precipitation averages 1065 Millimeters. Duanesburg 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 | -10.4 °C | -0.7 °C | 62.99 mm |
| February | -9.7 °C | 0.9 °C | 63.25 mm |
| March | -5.3 °C | 5.7 °C | 84.58 mm |
| April | 1.2 °C | 13.6 °C | 87.38 mm |
| May | 7.7 °C | 20.5 °C | 93.47 mm |
| June | 12.7 °C | 24.9 °C | 103.89 mm |
| July | 15.3 °C | 27.6 °C | 115.82 mm |
| August | 14.3 °C | 26.7 °C | 103.89 mm |
| September | 10.2 °C | 22.8 °C | 84.33 mm |
| October | 4.1 °C | 15.5 °C | 111.76 mm |
| November | -1.4 °C | 8.6 °C | 67.56 mm |
| December | -6.4 °C | 2.3 °C | 86.11 mm |
| Annual | 2.7 °C | 14 °C | 1065.03 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |