Red Butte, Wyoming has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1 °C (low) to 15.9 °C (high). Annual precipitation averages 419.6 Millimeters. Red Butte is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.3 °C | 3 °C | 18.54 mm |
| February | -7.8 °C | 4.1 °C | 22.86 mm |
| March | -3.9 °C | 9.8 °C | 37.85 mm |
| April | -0.7 °C | 13.8 °C | 53.59 mm |
| May | 4.3 °C | 19.3 °C | 76.2 mm |
| June | 9.1 °C | 26.4 °C | 45.47 mm |
| July | 13.2 °C | 31.6 °C | 26.16 mm |
| August | 11.9 °C | 30.6 °C | 23.37 mm |
| September | 6.6 °C | 24.7 °C | 29.72 mm |
| October | 0.5 °C | 16.1 °C | 43.18 mm |
| November | -4.5 °C | 8.4 °C | 20.83 mm |
| December | -8.2 °C | 2.9 °C | 21.84 mm |
| Annual | 1 °C | 15.9 °C | 419.61 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°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 |