New Town, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.9 °C (low) to 11.6 °C (high). Annual precipitation averages 420.6 Millimeters. New Town 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 | -17 °C | -6.4 °C | 12.7 mm |
| February | -14.2 °C | -3.7 °C | 10.41 mm |
| March | -8.1 °C | 3.1 °C | 17.78 mm |
| April | -1.7 °C | 12.6 °C | 24.64 mm |
| May | 5.1 °C | 19.3 °C | 60.2 mm |
| June | 11.1 °C | 23.9 °C | 88.9 mm |
| July | 13.6 °C | 27.7 °C | 63.25 mm |
| August | 12.6 °C | 27.9 °C | 44.96 mm |
| September | 7.2 °C | 22.4 °C | 43.18 mm |
| October | 0.4 °C | 13.2 °C | 27.69 mm |
| November | -6.9 °C | 3.4 °C | 14.22 mm |
| December | -13.2 °C | -4.1 °C | 12.7 mm |
| Annual | -0.9 °C | 11.6 °C | 420.63 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |