Antelope Hills, Wyoming has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.2 °C (low) to 14.6 °C (high). Annual precipitation averages 387.6 Millimeters. Antelope Hills is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.3 °C | 1.8 °C | 16.26 mm |
| February | -9.2 °C | 2.7 °C | 19.3 mm |
| March | -4.8 °C | 8.4 °C | 32 mm |
| April | -1.3 °C | 12.3 °C | 47.24 mm |
| May | 3.4 °C | 18.1 °C | 71.63 mm |
| June | 8.3 °C | 24.8 °C | 40.64 mm |
| July | 12.3 °C | 30.3 °C | 29.97 mm |
| August | 11.2 °C | 29.4 °C | 21.59 mm |
| September | 6.2 °C | 23.4 °C | 27.69 mm |
| October | 0.2 °C | 14.9 °C | 41.91 mm |
| November | -5.5 °C | 7.1 °C | 21.08 mm |
| December | -9.2 °C | 1.5 °C | 18.29 mm |
| Annual | 0.2 °C | 14.6 °C | 387.6 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |