Beulah, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.2 °C (low) to 15.4 °C (high). Annual precipitation averages 523.2 Millimeters. Beulah is located in USDA Plant Hardiness Zone 5a. 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 | -10.2 °C | 2.3 °C | 14.73 mm |
| February | -9.2 °C | 3.2 °C | 19.3 mm |
| March | -4.8 °C | 8.6 °C | 28.45 mm |
| April | -0.2 °C | 14.1 °C | 54.86 mm |
| May | 5.4 °C | 19.3 °C | 93.22 mm |
| June | 10.7 °C | 25.4 °C | 84.07 mm |
| July | 14.3 °C | 30.7 °C | 54.1 mm |
| August | 13.2 °C | 30.1 °C | 46.99 mm |
| September | 7.9 °C | 24.4 °C | 38.1 mm |
| October | 1.3 °C | 15.9 °C | 47.75 mm |
| November | -4.6 °C | 8.1 °C | 21.08 mm |
| December | -9.2 °C | 2.9 °C | 20.57 mm |
| Annual | 1.2 °C | 15.4 °C | 523.22 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 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 |