Hudson, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.5 °C (low) to 15.9 °C (high). Annual precipitation averages 1089.4 Millimeters. Hudson 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 | -7.4 °C | 1.8 °C | 67.82 mm |
| February | -6.8 °C | 3.4 °C | 61.21 mm |
| March | -2.7 °C | 8.2 °C | 69.6 mm |
| April | 3.2 °C | 15.7 °C | 91.95 mm |
| May | 9 °C | 22 °C | 90.93 mm |
| June | 13.9 °C | 26.4 °C | 116.84 mm |
| July | 16.4 °C | 29.1 °C | 111.76 mm |
| August | 15.5 °C | 28 °C | 99.06 mm |
| September | 11.5 °C | 24.1 °C | 117.09 mm |
| October | 5.4 °C | 17.2 °C | 108.97 mm |
| November | 0.3 °C | 10.7 °C | 74.17 mm |
| December | -4 °C | 4.7 °C | 80.01 mm |
| Annual | 4.5 °C | 15.9 °C | 1089.41 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |