Des Lacs, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.6 °F (low) to 50.6 °F (high). Annual precipitation averages 18.3 Inches. 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 | 0.4 °F | 18.1 °F | 0.56 in. |
| February | 4.4 °F | 22.8 °F | 0.54 in. |
| March | 15.7 °F | 34.8 °F | 0.72 in. |
| April | 28.6 °F | 51.5 °F | 0.94 in. |
| May | 41.5 °F | 64.7 °F | 2.7 in. |
| June | 52.3 °F | 73.3 °F | 3.76 in. |
| July | 56.5 °F | 79.4 °F | 2.65 in. |
| August | 53.9 °F | 80.1 °F | 2.04 in. |
| September | 44.5 °F | 70.1 °F | 1.62 in. |
| October | 32.1 °F | 53.6 °F | 1.34 in. |
| November | 18.4 °F | 36.2 °F | 0.74 in. |
| December | 6.7 °F | 22.9 °F | 0.65 in. |
| Annual | 29.6 °F | 50.6 °F | 18.26 in. |
| 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 : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |