Pine Bluffs, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.4 °C (low) to 16.6 °C (high). Annual precipitation averages 390.4 Millimeters. Pine Bluffs 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. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.3 °C | 4.8 °C | 6.86 mm |
| February | -8.9 °C | 5.7 °C | 9.14 mm |
| March | -5.1 °C | 10.8 °C | 20.57 mm |
| April | -1.3 °C | 14.4 °C | 41.4 mm |
| May | 4.1 °C | 19.8 °C | 62.99 mm |
| June | 9.4 °C | 26.5 °C | 65.53 mm |
| July | 12.9 °C | 30.7 °C | 49.78 mm |
| August | 11.7 °C | 29.6 °C | 48.51 mm |
| September | 6.8 °C | 24.9 °C | 36.58 mm |
| October | 0 °C | 16.8 °C | 28.7 mm |
| November | -5.5 °C | 9.8 °C | 11.94 mm |
| December | -9.7 °C | 4.8 °C | 8.38 mm |
| Annual | 0.4 °C | 16.6 °C | 390.38 mm |
| 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |