Turton, South Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.3 °C (low) to 13 °C (high). Annual precipitation averages 580.9 Millimeters. Turton is located in USDA Plant Hardiness Zone 4a. 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 | -16.2 °C | -5.2 °C | 12.95 mm |
| February | -13.9 °C | -2.3 °C | 16.26 mm |
| March | -6.9 °C | 4.8 °C | 24.13 mm |
| April | -0.2 °C | 13.4 °C | 56.13 mm |
| May | 6.9 °C | 20.4 °C | 80.01 mm |
| June | 13.1 °C | 25.9 °C | 98.55 mm |
| July | 15.7 °C | 28.8 °C | 84.33 mm |
| August | 14.2 °C | 27.9 °C | 61.21 mm |
| September | 8.9 °C | 23.5 °C | 59.18 mm |
| October | 1.3 °C | 14.9 °C | 53.85 mm |
| November | -6.4 °C | 5.6 °C | 19.05 mm |
| December | -12.8 °C | -2.2 °C | 15.24 mm |
| Annual | 0.3 °C | 13 °C | 580.89 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 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |