Quinn, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 34.2 °F (low) to 61.2 °F (high). Annual precipitation averages 18.7 Inches. 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 | 11.0 °F | 35.0 °F | 0.42 in. |
| February | 13.7 °F | 38.4 °F | 0.56 in. |
| March | 22.5 °F | 49.0 °F | 1.03 in. |
| April | 31.9 °F | 58.9 °F | 2.11 in. |
| May | 43.4 °F | 69.3 °F | 3.35 in. |
| June | 53.8 °F | 80.0 °F | 3.22 in. |
| July | 60.1 °F | 88.4 °F | 2.29 in. |
| August | 57.8 °F | 88.0 °F | 1.75 in. |
| September | 47.3 °F | 78.8 °F | 1.31 in. |
| October | 34.2 °F | 62.9 °F | 1.58 in. |
| November | 21.8 °F | 48.2 °F | 0.57 in. |
| December | 13.0 °F | 36.9 °F | 0.48 in. |
| Annual | 34.2 °F | 61.2 °F | 18.67 in. |
| 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 : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |