Chugwater, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.9 °C (low) to 16.1 °C (high). Annual precipitation averages 421.6 Millimeters. Chugwater is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.1 °C | 4.5 °C | 12.19 mm |
| February | -8.1 °C | 5.2 °C | 17.02 mm |
| March | -4.2 °C | 10.3 °C | 28.7 mm |
| April | -0.8 °C | 13.8 °C | 51.56 mm |
| May | 4.3 °C | 19.2 °C | 76.2 mm |
| June | 9.3 °C | 25.7 °C | 52.32 mm |
| July | 12.8 °C | 30.4 °C | 40.64 mm |
| August | 11.7 °C | 29.3 °C | 39.37 mm |
| September | 6.6 °C | 24.4 °C | 36.07 mm |
| October | 0.2 °C | 16.6 °C | 30.48 mm |
| November | -4.6 °C | 9.2 °C | 18.03 mm |
| December | -8.2 °C | 4.5 °C | 19.05 mm |
| Annual | 0.9 °C | 16.1 °C | 421.63 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |