Woonsocket, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35 °F (low) to 58 °F (high). Annual precipitation averages 24.2 Inches. Woonsocket 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 | 6.9 °F | 26.4 °F | 0.53 in. |
| February | 10.9 °F | 32.3 °F | 0.66 in. |
| March | 22.0 °F | 44.1 °F | 1.09 in. |
| April | 33.8 °F | 58.8 °F | 2.76 in. |
| May | 46.5 °F | 70.3 °F | 3.48 in. |
| June | 57.4 °F | 80.3 °F | 3.87 in. |
| July | 61.8 °F | 85.8 °F | 2.95 in. |
| August | 59.5 °F | 84.0 °F | 2.85 in. |
| September | 50.4 °F | 76.2 °F | 2.5 in. |
| October | 36.3 °F | 61.5 °F | 2.06 in. |
| November | 23.1 °F | 44.8 °F | 0.85 in. |
| December | 11.9 °F | 30.9 °F | 0.61 in. |
| Annual | 35 °F | 58 °F | 24.21 in. |
| 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 : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |