Hudson, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.9 °C (low) to 16.1 °C (high). Annual precipitation averages 1125.5 Millimeters. Hudson is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.8 °C | 1.6 °C | 70.87 mm |
| February | -7 °C | 3.2 °C | 63.5 mm |
| March | -2.5 °C | 8.4 °C | 82.55 mm |
| April | 3.6 °C | 16.5 °C | 90.68 mm |
| May | 9.4 °C | 22.7 °C | 89.15 mm |
| June | 14.6 °C | 26.9 °C | 113.28 mm |
| July | 17.2 °C | 29.5 °C | 105.41 mm |
| August | 16.4 °C | 28.2 °C | 115.82 mm |
| September | 12.2 °C | 24.2 °C | 115.06 mm |
| October | 5.9 °C | 17.3 °C | 116.08 mm |
| November | 0.8 °C | 10.5 °C | 74.17 mm |
| December | -4.1 °C | 4.2 °C | 88.9 mm |
| Annual | 4.9 °C | 16.1 °C | 1125.47 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |