Whitewood, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 34.6 °F (low) to 58.8 °F (high). Annual precipitation averages 25 Inches. Whitewood is located in USDA Plant Hardiness Zone 5b. 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 | 14.8 °F | 37.1 °F | 0.73 in. |
| February | 16.1 °F | 38.0 °F | 1.0 in. |
| March | 23.4 °F | 47.2 °F | 1.69 in. |
| April | 31.4 °F | 55.5 °F | 2.94 in. |
| May | 41.5 °F | 64.8 °F | 4.43 in. |
| June | 51.1 °F | 75.7 °F | 3.86 in. |
| July | 57.7 °F | 84.2 °F | 2.34 in. |
| August | 55.7 °F | 83.5 °F | 1.88 in. |
| September | 47.1 °F | 74.4 °F | 1.6 in. |
| October | 35.3 °F | 59.5 °F | 2.45 in. |
| November | 24.3 °F | 47.2 °F | 1.09 in. |
| December | 17.2 °F | 37.9 °F | 1.02 in. |
| Annual | 34.6 °F | 58.8 °F | 25.03 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |