Dawson, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.8 °F (low) to 52.3 °F (high). Annual precipitation averages 20.3 Inches. Dawson 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 | 1.0 °F | 19.6 °F | 0.47 in. |
| February | 4.8 °F | 24.0 °F | 0.44 in. |
| March | 17.1 °F | 36.6 °F | 0.69 in. |
| April | 29.9 °F | 53.2 °F | 1.27 in. |
| May | 42.7 °F | 66.1 °F | 2.91 in. |
| June | 53.5 °F | 75.1 °F | 3.7 in. |
| July | 58.2 °F | 81.5 °F | 3.41 in. |
| August | 55.8 °F | 80.7 °F | 2.26 in. |
| September | 46.5 °F | 71.6 °F | 2.13 in. |
| October | 33.3 °F | 55.7 °F | 1.7 in. |
| November | 19.0 °F | 38.4 °F | 0.67 in. |
| December | 7.6 °F | 24.9 °F | 0.65 in. |
| Annual | 30.8 °F | 52.3 °F | 20.3 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 |