Mohall, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2.1 °C (low) to 10.1 °C (high). Annual precipitation averages 458.2 Millimeters. Mohall 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 | -18.7 °C | -8.6 °C | 13.97 mm |
| February | -16.6 °C | -5.8 °C | 12.19 mm |
| March | -9.9 °C | 0.8 °C | 19.81 mm |
| April | -2.2 °C | 10.9 °C | 24.89 mm |
| May | 4.8 °C | 18.4 °C | 66.29 mm |
| June | 10.9 °C | 23.2 °C | 93.98 mm |
| July | 13.1 °C | 26.4 °C | 66.29 mm |
| August | 11.6 °C | 26.6 °C | 53.09 mm |
| September | 6.4 °C | 21.2 °C | 40.89 mm |
| October | -0.7 °C | 12.1 °C | 32.51 mm |
| November | -8.4 °C | 1.8 °C | 18.54 mm |
| December | -15.4 °C | -5.8 °C | 15.75 mm |
| Annual | -2.1 °C | 10.1 °C | 458.2 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 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |