Cogswell, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.8 °F (low) to 52.6 °F (high). Annual precipitation averages 23.3 Inches. Cogswell 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.0 °F | 19.4 °F | 0.57 in. |
| February | 5.3 °F | 24.5 °F | 0.59 in. |
| March | 17.7 °F | 37.1 °F | 0.95 in. |
| April | 31.0 °F | 53.2 °F | 1.7 in. |
| May | 44.5 °F | 67.1 °F | 3.29 in. |
| June | 55.6 °F | 76.4 °F | 4.23 in. |
| July | 59.6 °F | 81.1 °F | 3.47 in. |
| August | 56.9 °F | 80.1 °F | 2.26 in. |
| September | 47.4 °F | 71.9 °F | 2.67 in. |
| October | 34.0 °F | 56.4 °F | 2.21 in. |
| November | 20.3 °F | 38.9 °F | 0.73 in. |
| December | 8.4 °F | 25.4 °F | 0.67 in. |
| Annual | 31.8 °F | 52.6 °F | 23.34 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 |