Midland, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.1 °C (low) to 16 °C (high). Annual precipitation averages 459.5 Millimeters. Midland 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 | -12.7 °C | 0.4 °C | 8.89 mm |
| February | -10.8 °C | 2.9 °C | 12.45 mm |
| March | -5.6 °C | 8.9 °C | 24.64 mm |
| April | -0.1 °C | 15.3 °C | 46.23 mm |
| May | 6.6 °C | 20.9 °C | 76.96 mm |
| June | 12.4 °C | 26.9 °C | 84.58 mm |
| July | 15.9 °C | 31.4 °C | 61.98 mm |
| August | 14.7 °C | 31.1 °C | 48.01 mm |
| September | 8.9 °C | 26.1 °C | 37.59 mm |
| October | 1.3 °C | 17.2 °C | 37.85 mm |
| November | -6.1 °C | 8.7 °C | 11.68 mm |
| December | -11.3 °C | 1.9 °C | 8.64 mm |
| Annual | 1.1 °C | 16 °C | 459.5 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 | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |