New Leipzig, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.8 °C (low) to 12.7 °C (high). Annual precipitation averages 453.9 Millimeters. New Leipzig is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.2 °C | -3.9 °C | 10.16 mm |
| February | -13.3 °C | -1.6 °C | 12.45 mm |
| March | -7.6 °C | 4.9 °C | 19.05 mm |
| April | -1.7 °C | 12.7 °C | 32.77 mm |
| May | 4.8 °C | 18.9 °C | 67.31 mm |
| June | 10.6 °C | 24.2 °C | 84.58 mm |
| July | 13.6 °C | 28.6 °C | 72.14 mm |
| August | 12.3 °C | 28.4 °C | 47.75 mm |
| September | 6.9 °C | 22.9 °C | 40.64 mm |
| October | -0.2 °C | 13.9 °C | 38.35 mm |
| November | -7.3 °C | 5 °C | 17.02 mm |
| December | -13 °C | -1.7 °C | 11.68 mm |
| Annual | -0.8 °C | 12.7 °C | 453.9 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |