Red Butte, Wyoming has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.8 °F (low) to 60.6 °F (high). Annual precipitation averages 16.5 Inches. 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 | 17.0 °F | 37.4 °F | 0.73 in. |
| February | 17.9 °F | 39.3 °F | 0.9 in. |
| March | 24.9 °F | 49.7 °F | 1.49 in. |
| April | 30.8 °F | 56.9 °F | 2.11 in. |
| May | 39.7 °F | 66.8 °F | 3.0 in. |
| June | 48.4 °F | 79.5 °F | 1.79 in. |
| July | 55.7 °F | 88.8 °F | 1.03 in. |
| August | 53.5 °F | 87.1 °F | 0.92 in. |
| September | 43.8 °F | 76.4 °F | 1.17 in. |
| October | 32.9 °F | 60.9 °F | 1.7 in. |
| November | 23.9 °F | 47.2 °F | 0.82 in. |
| December | 17.2 °F | 37.3 °F | 0.86 in. |
| Annual | 33.8 °F | 60.6 °F | 16.52 in. |
| 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 : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |