Mooreton, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.2 °C (low) to 11.3 °C (high). Annual precipitation averages 627.4 Millimeters. Mooreton is located in USDA Plant Hardiness Zone 4a. 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 | -17.3 °C | -7.6 °C | 18.03 mm |
| February | -15.2 °C | -5.1 °C | 16.76 mm |
| March | -7.6 °C | 2.1 °C | 26.16 mm |
| April | 0.1 °C | 11.8 °C | 45.21 mm |
| May | 7.3 °C | 19.8 °C | 80.77 mm |
| June | 13.6 °C | 25.1 °C | 105.41 mm |
| July | 15.6 °C | 27.5 °C | 91.69 mm |
| August | 13.8 °C | 26.8 °C | 71.63 mm |
| September | 8.9 °C | 22.2 °C | 70.1 mm |
| October | 1.8 °C | 13.6 °C | 60.96 mm |
| November | -5.9 °C | 3.8 °C | 21.08 mm |
| December | -13.3 °C | -4.2 °C | 19.56 mm |
| Annual | 0.2 °C | 11.3 °C | 627.36 mm |
| 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 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 |