Sheyenne, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.2 °C (low) to 10.3 °C (high). Annual precipitation averages 483.4 Millimeters. Sheyenne 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.6 °C | -8.4 °C | 10.16 mm |
| February | -16.7 °C | -5.9 °C | 9.14 mm |
| March | -9.6 °C | 0.8 °C | 16.76 mm |
| April | -1.8 °C | 10.9 °C | 27.18 mm |
| May | 5.8 °C | 18.9 °C | 61.72 mm |
| June | 11.8 °C | 23.9 °C | 97.79 mm |
| July | 14.6 °C | 26.9 °C | 83.57 mm |
| August | 13.2 °C | 26.8 °C | 62.74 mm |
| September | 8 °C | 21.4 °C | 45.97 mm |
| October | 0.7 °C | 12.3 °C | 37.85 mm |
| November | -7.4 °C | 2.1 °C | 16 mm |
| December | -14.6 °C | -5.6 °C | 14.48 mm |
| Annual | -1.2 °C | 10.3 °C | 483.36 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |