Carpenter, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 32.6 °F (low) to 61.6 °F (high). Annual precipitation averages 15.1 Inches. Carpenter is located in USDA Plant Hardiness Zone 5b. 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 | 15.2 °F | 40.7 °F | 0.27 in. |
| February | 15.9 °F | 42.0 °F | 0.32 in. |
| March | 22.9 °F | 51.1 °F | 0.77 in. |
| April | 29.4 °F | 58.2 °F | 1.61 in. |
| May | 39.0 °F | 67.3 °F | 2.66 in. |
| June | 48.3 °F | 79.5 °F | 2.36 in. |
| July | 54.6 °F | 86.8 °F | 2.24 in. |
| August | 52.6 °F | 84.9 °F | 1.68 in. |
| September | 44.1 °F | 76.4 °F | 1.41 in. |
| October | 32.4 °F | 62.8 °F | 1.0 in. |
| November | 22.3 °F | 49.2 °F | 0.45 in. |
| December | 14.8 °F | 40.6 °F | 0.29 in. |
| Annual | 32.6 °F | 61.6 °F | 15.06 in. |
| 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |