Des Lacs, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.4 °C (low) to 10.3 °C (high). Annual precipitation averages 463.8 Millimeters. Des Lacs 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 | -17.6 °C | -7.7 °C | 14.22 mm |
| February | -15.3 °C | -5.1 °C | 13.72 mm |
| March | -9.1 °C | 1.6 °C | 18.29 mm |
| April | -1.9 °C | 10.8 °C | 23.88 mm |
| May | 5.3 °C | 18.2 °C | 68.58 mm |
| June | 11.3 °C | 22.9 °C | 95.5 mm |
| July | 13.6 °C | 26.3 °C | 67.31 mm |
| August | 12.2 °C | 26.7 °C | 51.82 mm |
| September | 6.9 °C | 21.2 °C | 41.15 mm |
| October | 0.1 °C | 12 °C | 34.04 mm |
| November | -7.6 °C | 2.3 °C | 18.8 mm |
| December | -14.1 °C | -5.1 °C | 16.51 mm |
| Annual | -1.4 °C | 10.3 °C | 463.82 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 |