Bowman, North Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 31.2 °F (low) to 55.6 °F (high). Annual precipitation averages 16.5 Inches. Bowman is located in USDA Plant Hardiness Zone 4b. 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 | 7.6 °F | 27.8 °F | 0.47 in. |
| February | 10.5 °F | 31.7 °F | 0.52 in. |
| March | 19.3 °F | 42.2 °F | 0.78 in. |
| April | 29.4 °F | 54.1 °F | 1.28 in. |
| May | 40.5 °F | 64.8 °F | 2.64 in. |
| June | 50.6 °F | 75.0 °F | 3.2 in. |
| July | 56.3 °F | 83.9 °F | 2.21 in. |
| August | 53.7 °F | 83.8 °F | 1.42 in. |
| September | 44.0 °F | 73.6 °F | 1.47 in. |
| October | 31.7 °F | 57.2 °F | 1.56 in. |
| November | 19.9 °F | 42.4 °F | 0.53 in. |
| December | 10.6 °F | 31.2 °F | 0.45 in. |
| Annual | 31.2 °F | 55.6 °F | 16.53 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |