Lawton, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 28.5 °F (low) to 48.4 °F (high). Annual precipitation averages 20.8 Inches. Lawton 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 | -3.4 °F | 13.9 °F | 0.48 in. |
| February | -0.3 °F | 18.8 °F | 0.45 in. |
| March | 13.0 °F | 31.1 °F | 0.72 in. |
| April | 28.5 °F | 49.2 °F | 0.98 in. |
| May | 41.5 °F | 64.1 °F | 2.92 in. |
| June | 52.9 °F | 73.4 °F | 3.91 in. |
| July | 57.1 °F | 78.2 °F | 3.57 in. |
| August | 54.6 °F | 77.8 °F | 2.63 in. |
| September | 45.0 °F | 68.4 °F | 2.01 in. |
| October | 32.0 °F | 52.3 °F | 1.63 in. |
| November | 17.3 °F | 33.9 °F | 0.85 in. |
| December | 3.8 °F | 19.5 °F | 0.69 in. |
| Annual | 28.5 °F | 48.4 °F | 20.84 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 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |