Wounded Knee, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 34.3 °F (low) to 61.2 °F (high). Annual precipitation averages 19.5 Inches. Wounded Knee 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.8 °F | 36.5 °F | 0.45 in. |
| February | 15.0 °F | 39.5 °F | 0.56 in. |
| March | 23.3 °F | 50.2 °F | 1.14 in. |
| April | 31.6 °F | 58.5 °F | 2.23 in. |
| May | 42.4 °F | 68.3 °F | 3.15 in. |
| June | 52.8 °F | 79.7 °F | 3.41 in. |
| July | 59.3 °F | 88.2 °F | 2.4 in. |
| August | 56.9 °F | 87.2 °F | 1.85 in. |
| September | 46.6 °F | 77.9 °F | 1.5 in. |
| October | 33.8 °F | 62.2 °F | 1.64 in. |
| November | 22.4 °F | 48.9 °F | 0.65 in. |
| December | 14.2 °F | 37.7 °F | 0.5 in. |
| Annual | 34.3 °F | 61.2 °F | 19.48 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |