Beulah, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 34.2 °F (low) to 59.8 °F (high). Annual precipitation averages 20.6 Inches. 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 | 13.7 °F | 36.1 °F | 0.58 in. |
| February | 15.4 °F | 37.7 °F | 0.76 in. |
| March | 23.4 °F | 47.5 °F | 1.12 in. |
| April | 31.6 °F | 57.4 °F | 2.16 in. |
| May | 41.7 °F | 66.8 °F | 3.67 in. |
| June | 51.2 °F | 77.7 °F | 3.31 in. |
| July | 57.7 °F | 87.2 °F | 2.13 in. |
| August | 55.8 °F | 86.1 °F | 1.85 in. |
| September | 46.3 °F | 76.0 °F | 1.5 in. |
| October | 34.4 °F | 60.7 °F | 1.88 in. |
| November | 23.7 °F | 46.6 °F | 0.83 in. |
| December | 15.5 °F | 37.2 °F | 0.81 in. |
| Annual | 34.2 °F | 59.8 °F | 20.6 in. |
| 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 : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |