Mina, South Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.2 °C (low) to 12.6 °C (high). Annual precipitation averages 558.3 Millimeters. Mina 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -16.2 °C | -5.5 °C | 12.45 mm |
| February | -13.9 °C | -2.7 °C | 15.49 mm |
| March | -7.3 °C | 4.3 °C | 23.88 mm |
| April | -0.3 °C | 12.9 °C | 48.26 mm |
| May | 6.9 °C | 20.1 °C | 81.79 mm |
| June | 12.9 °C | 25.4 °C | 92.71 mm |
| July | 15.6 °C | 28.3 °C | 86.61 mm |
| August | 14.1 °C | 27.6 °C | 62.74 mm |
| September | 8.7 °C | 23 °C | 53.85 mm |
| October | 1.2 °C | 14.6 °C | 48.01 mm |
| November | -6.3 °C | 5.2 °C | 17.53 mm |
| December | -12.7 °C | -2.6 °C | 14.99 mm |
| Annual | 0.2 °C | 12.6 °C | 558.31 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 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |