Quinn, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 1.2 °C (low) to 16.2 °C (high). Annual precipitation averages 474.2 Millimeters. Quinn 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 | -11.7 °C | 1.7 °C | 10.67 mm |
| February | -10.2 °C | 3.6 °C | 14.22 mm |
| March | -5.3 °C | 9.4 °C | 26.16 mm |
| April | -0.1 °C | 14.9 °C | 53.59 mm |
| May | 6.3 °C | 20.7 °C | 85.09 mm |
| June | 12.1 °C | 26.7 °C | 81.79 mm |
| July | 15.6 °C | 31.3 °C | 58.17 mm |
| August | 14.3 °C | 31.1 °C | 44.45 mm |
| September | 8.5 °C | 26 °C | 33.27 mm |
| October | 1.2 °C | 17.2 °C | 40.13 mm |
| November | -5.7 °C | 9 °C | 14.48 mm |
| December | -10.6 °C | 2.7 °C | 12.19 mm |
| Annual | 1.2 °C | 16.2 °C | 474.21 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 | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |