Fessenden, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.3 °C (low) to 10.6 °C (high). Annual precipitation averages 491.2 Millimeters. Fessenden 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 | -17.8 °C | -7.9 °C | 9.91 mm |
| February | -15.9 °C | -5.5 °C | 11.68 mm |
| March | -9.2 °C | 1.3 °C | 16.26 mm |
| April | -1.8 °C | 11.2 °C | 27.94 mm |
| May | 5.4 °C | 18.8 °C | 67.06 mm |
| June | 11.7 °C | 23.8 °C | 96.52 mm |
| July | 14.1 °C | 26.8 °C | 82.8 mm |
| August | 12.4 °C | 26.8 °C | 58.67 mm |
| September | 7.6 °C | 21.8 °C | 52.58 mm |
| October | 0.2 °C | 12.7 °C | 34.54 mm |
| November | -7.7 °C | 2.6 °C | 16.26 mm |
| December | -14.4 °C | -5.2 °C | 17.02 mm |
| Annual | -1.3 °C | 10.6 °C | 491.24 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 |