Hudson, Indiana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.3 °C (low) to 15.2 °C (high). Annual precipitation averages 991.4 Millimeters. Hudson is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.6 °C | -0.2 °C | 61.98 mm |
| February | -7.6 °C | 1.8 °C | 54.1 mm |
| March | -2.9 °C | 7.9 °C | 62.23 mm |
| April | 2.9 °C | 15.3 °C | 91.19 mm |
| May | 9.4 °C | 21.7 °C | 109.98 mm |
| June | 14.8 °C | 26.7 °C | 102.36 mm |
| July | 16.6 °C | 28.6 °C | 97.79 mm |
| August | 15.4 °C | 27.4 °C | 109.47 mm |
| September | 11.3 °C | 24.2 °C | 85.09 mm |
| October | 5.2 °C | 17.2 °C | 76.45 mm |
| November | -0.3 °C | 9.1 °C | 77.98 mm |
| December | -5.2 °C | 2.5 °C | 62.74 mm |
| Annual | 4.3 °C | 15.2 °C | 991.36 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°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 |