Pavillion, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -0.8 °C (low) to 14.8 °C (high). Annual precipitation averages 231.2 Millimeters. Pavillion 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 | -12.9 °C | 1 °C | 6.35 mm |
| February | -11.2 °C | 3.3 °C | 7.62 mm |
| March | -5.5 °C | 9.5 °C | 11.94 mm |
| April | -1.2 °C | 13.8 °C | 32.77 mm |
| May | 3.8 °C | 18.9 °C | 57.15 mm |
| June | 8.1 °C | 25.1 °C | 27.18 mm |
| July | 12.1 °C | 30.4 °C | 16.76 mm |
| August | 10.9 °C | 29.3 °C | 13.97 mm |
| September | 6.2 °C | 23.3 °C | 22.61 mm |
| October | -0.1 °C | 15.4 °C | 18.54 mm |
| November | -7.1 °C | 7.1 °C | 9.91 mm |
| December | -12.3 °C | 1 °C | 6.35 mm |
| Annual | -0.8 °C | 14.8 °C | 231.15 mm |
| 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 : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |