Maxbass, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 27.8 °F (low) to 50.4 °F (high). Annual precipitation averages 18.8 Inches. Maxbass 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 | -3.1 °F | 15.8 °F | 0.57 in. |
| February | 0.9 °F | 20.8 °F | 0.52 in. |
| March | 13.5 °F | 33.2 °F | 0.72 in. |
| April | 28.1 °F | 52.5 °F | 0.99 in. |
| May | 40.6 °F | 66.1 °F | 2.56 in. |
| June | 51.7 °F | 74.8 °F | 4.01 in. |
| July | 55.6 °F | 80.1 °F | 2.62 in. |
| August | 53.1 °F | 80.5 °F | 2.09 in. |
| September | 43.5 °F | 70.8 °F | 1.7 in. |
| October | 30.4 °F | 54.2 °F | 1.42 in. |
| November | 16.0 °F | 35.3 °F | 0.92 in. |
| December | 3.3 °F | 21.1 °F | 0.69 in. |
| Annual | 27.8 °F | 50.4 °F | 18.81 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 |