Vale, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 0.6 °C (low) to 15.5 °C (high). Annual precipitation averages 479.3 Millimeters. Vale is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.2 °C | 1.2 °C | 11.68 mm |
| February | -10.4 °C | 2.9 °C | 14.99 mm |
| March | -5.3 °C | 8.8 °C | 27.43 mm |
| April | -0.4 °C | 14.7 °C | 53.09 mm |
| May | 5.4 °C | 19.8 °C | 94.49 mm |
| June | 11.1 °C | 25.9 °C | 76.2 mm |
| July | 14.7 °C | 30.5 °C | 55.12 mm |
| August | 13.4 °C | 30.1 °C | 37.08 mm |
| September | 7.7 °C | 24.7 °C | 31.75 mm |
| October | 0.4 °C | 16.4 °C | 45.72 mm |
| November | -6.2 °C | 8.2 °C | 17.02 mm |
| December | -11.1 °C | 2.2 °C | 14.73 mm |
| Annual | 0.6 °C | 15.5 °C | 479.3 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |