Bison, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.3 °C (low) to 14 °C (high). Annual precipitation averages 469.9 Millimeters. Bison 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 | -1.8 °C | 11.68 mm |
| February | -11.2 °C | 0.2 °C | 14.99 mm |
| March | -6.3 °C | 6.4 °C | 22.35 mm |
| April | -0.9 °C | 13.4 °C | 43.69 mm |
| May | 5.4 °C | 19.4 °C | 79.5 mm |
| June | 10.9 °C | 25.1 °C | 85.6 mm |
| July | 14.3 °C | 29.7 °C | 66.8 mm |
| August | 13.2 °C | 29.5 °C | 46.99 mm |
| September | 7.9 °C | 24.4 °C | 35.05 mm |
| October | 0.8 °C | 15.2 °C | 37.59 mm |
| November | -5.9 °C | 6.3 °C | 13.72 mm |
| December | -11.2 °C | -0.3 °C | 11.94 mm |
| Annual | 0.3 °C | 14 °C | 469.9 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 | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |