Adams, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 27.6 °F (low) to 47.9 °F (high). Annual precipitation averages 20.8 Inches. Adams is located in USDA Plant Hardiness Zone 3b. 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 | -4.4 °F | 13.2 °F | 0.46 in. |
| February | -1.4 °F | 18.0 °F | 0.47 in. |
| March | 12.3 °F | 30.3 °F | 0.71 in. |
| April | 27.9 °F | 48.8 °F | 0.96 in. |
| May | 40.8 °F | 63.8 °F | 3.07 in. |
| June | 52.1 °F | 73.1 °F | 3.93 in. |
| July | 56.0 °F | 77.7 °F | 3.41 in. |
| August | 53.5 °F | 77.5 °F | 2.68 in. |
| September | 44.0 °F | 68.2 °F | 2.02 in. |
| October | 30.9 °F | 52.1 °F | 1.59 in. |
| November | 16.3 °F | 33.5 °F | 0.82 in. |
| December | 2.9 °F | 18.9 °F | 0.65 in. |
| Annual | 27.6 °F | 47.9 °F | 20.77 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -35°F to -30°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 |