Hamptonburgh, 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 15.8 °C (high). Annual precipitation averages 1137.7 Millimeters. Hamptonburgh 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.9 °C | 1.8 °C | 81.03 mm |
| February | -7.1 °C | 3.5 °C | 65.28 mm |
| March | -2.7 °C | 8.2 °C | 94.23 mm |
| April | 3.4 °C | 15.4 °C | 94.23 mm |
| May | 9.1 °C | 21.3 °C | 87.63 mm |
| June | 14.2 °C | 26.1 °C | 109.98 mm |
| July | 16.9 °C | 28.8 °C | 100.58 mm |
| August | 16.1 °C | 27.8 °C | 107.7 mm |
| September | 11.8 °C | 23.9 °C | 101.09 mm |
| October | 5.5 °C | 17.1 °C | 109.47 mm |
| November | 0.1 °C | 10.7 °C | 87.88 mm |
| December | -4.5 °C | 4.6 °C | 98.55 mm |
| Annual | 4.6 °C | 15.8 °C | 1137.65 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |