Ward, South Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34 °F (low) to 54 °F (high). Annual precipitation averages 27.4 Inches. Ward 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.3 °F | 22.6 °F | 0.61 in. |
| February | 9.1 °F | 27.2 °F | 0.75 in. |
| March | 20.6 °F | 39.3 °F | 1.37 in. |
| April | 32.8 °F | 54.4 °F | 2.68 in. |
| May | 45.8 °F | 67.1 °F | 3.7 in. |
| June | 56.8 °F | 77.2 °F | 4.39 in. |
| July | 60.7 °F | 81.7 °F | 3.43 in. |
| August | 58.1 °F | 79.2 °F | 3.22 in. |
| September | 49.4 °F | 72.3 °F | 3.1 in. |
| October | 36.0 °F | 58.1 °F | 2.16 in. |
| November | 22.7 °F | 41.4 °F | 1.06 in. |
| December | 11.2 °F | 27.5 °F | 0.88 in. |
| Annual | 34 °F | 54 °F | 27.35 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 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 | Dfb - Humid Continental Mild Summer, Wet All Year |