LaMoure, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.1 °F (low) to 53.1 °F (high). Annual precipitation averages 22.9 Inches. LaMoure 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 | 0.5 °F | 19.6 °F | 0.57 in. |
| February | 4.4 °F | 24.6 °F | 0.62 in. |
| March | 17.2 °F | 37.3 °F | 1.12 in. |
| April | 30.3 °F | 54.2 °F | 1.56 in. |
| May | 43.8 °F | 67.7 °F | 3.18 in. |
| June | 55.0 °F | 77.3 °F | 3.94 in. |
| July | 59.0 °F | 82.0 °F | 3.6 in. |
| August | 56.1 °F | 80.8 °F | 2.37 in. |
| September | 46.5 °F | 72.4 °F | 2.46 in. |
| October | 33.1 °F | 56.4 °F | 1.99 in. |
| November | 19.6 °F | 39.0 °F | 0.7 in. |
| December | 7.7 °F | 25.3 °F | 0.74 in. |
| Annual | 31.1 °F | 53.1 °F | 22.85 in. |
| 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 : -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 |