Midwest, Wyoming has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.1 °F (low) to 60.5 °F (high). Annual precipitation averages 13 Inches. Midwest is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.1 °F | 36.5 °F | 0.33 in. |
| February | 14.8 °F | 38.7 °F | 0.51 in. |
| March | 22.9 °F | 49.4 °F | 1.15 in. |
| April | 29.8 °F | 57.1 °F | 1.47 in. |
| May | 38.9 °F | 66.8 °F | 2.62 in. |
| June | 47.8 °F | 79.1 °F | 1.84 in. |
| July | 54.4 °F | 88.8 °F | 1.4 in. |
| August | 52.3 °F | 87.6 °F | 0.63 in. |
| September | 43.0 °F | 77.2 °F | 0.89 in. |
| October | 31.9 °F | 61.8 °F | 1.25 in. |
| November | 22.0 °F | 46.3 °F | 0.44 in. |
| December | 13.9 °F | 36.4 °F | 0.46 in. |
| Annual | 32.1 °F | 60.5 °F | 12.99 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |