Deaver, Wyoming has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 31.8 °F (low) to 59.5 °F (high). Annual precipitation averages 7 Inches. Deaver is located in USDA Plant Hardiness Zone 4b. 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 | 8.7 °F | 32.7 °F | 0.2 in. |
| February | 12.8 °F | 37.5 °F | 0.25 in. |
| March | 23.1 °F | 50.1 °F | 0.27 in. |
| April | 31.3 °F | 58.6 °F | 0.7 in. |
| May | 41.3 °F | 67.9 °F | 1.25 in. |
| June | 49.5 °F | 78.7 °F | 1.2 in. |
| July | 55.6 °F | 88.2 °F | 0.78 in. |
| August | 53.0 °F | 86.5 °F | 0.4 in. |
| September | 43.5 °F | 75.1 °F | 0.82 in. |
| October | 32.0 °F | 59.5 °F | 0.69 in. |
| November | 20.4 °F | 44.7 °F | 0.22 in. |
| December | 10.9 °F | 33.9 °F | 0.18 in. |
| Annual | 31.8 °F | 59.5 °F | 6.96 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |