Ethete, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -1.3 °C (low) to 15.2 °C (high). Annual precipitation averages 293.4 Millimeters. Ethete 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 | -13.7 °C | 1.2 °C | 10.67 mm |
| February | -11.7 °C | 3.4 °C | 13.72 mm |
| March | -5.8 °C | 9.7 °C | 22.35 mm |
| April | -1.6 °C | 14.2 °C | 46.23 mm |
| May | 3.4 °C | 19.2 °C | 61.47 mm |
| June | 7.7 °C | 25.6 °C | 28.96 mm |
| July | 11.5 °C | 30.9 °C | 17.53 mm |
| August | 10.4 °C | 29.8 °C | 15.75 mm |
| September | 5.7 °C | 23.9 °C | 26.67 mm |
| October | -0.8 °C | 15.8 °C | 28.19 mm |
| November | -7.6 °C | 7.3 °C | 13.46 mm |
| December | -12.8 °C | 1.1 °C | 8.38 mm |
| Annual | -1.3 °C | 15.2 °C | 293.38 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |