Hudson, Wyoming has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1 °C (low) to 15.5 °C (high). Annual precipitation averages 277.4 Millimeters. Hudson is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.9 °C | 0.8 °C | 10.41 mm |
| February | -11.7 °C | 3.5 °C | 15.75 mm |
| March | -5.6 °C | 10.2 °C | 21.84 mm |
| April | -1.2 °C | 14.4 °C | 42.67 mm |
| May | 3.9 °C | 19.7 °C | 53.85 mm |
| June | 8.4 °C | 26.3 °C | 25.91 mm |
| July | 12.2 °C | 31.8 °C | 15.24 mm |
| August | 10.9 °C | 30.6 °C | 14.22 mm |
| September | 6 °C | 24.6 °C | 26.67 mm |
| October | -0.6 °C | 15.9 °C | 27.94 mm |
| November | -7.6 °C | 7.4 °C | 13.21 mm |
| December | -13.1 °C | 0.9 °C | 9.65 mm |
| Annual | -1 °C | 15.5 °C | 277.36 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |