New Holland, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.1 °F (low) to 59.4 °F (high). Annual precipitation averages 24.8 Inches. New Holland 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 | 9.6 °F | 30.0 °F | 0.53 in. |
| February | 13.4 °F | 35.0 °F | 0.72 in. |
| March | 23.3 °F | 46.7 °F | 1.16 in. |
| April | 34.3 °F | 58.9 °F | 2.91 in. |
| May | 46.4 °F | 70.4 °F | 3.63 in. |
| June | 57.4 °F | 80.6 °F | 3.83 in. |
| July | 62.5 °F | 87.2 °F | 2.95 in. |
| August | 60.2 °F | 85.0 °F | 2.93 in. |
| September | 50.7 °F | 77.2 °F | 2.62 in. |
| October | 37.1 °F | 62.1 °F | 2.05 in. |
| November | 24.0 °F | 46.5 °F | 0.85 in. |
| December | 13.9 °F | 33.4 °F | 0.65 in. |
| Annual | 36.1 °F | 59.4 °F | 24.83 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 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |