Logan, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.3 °F (low) to 51.6 °F (high). Annual precipitation averages 18.8 Inches. Logan 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 | -0.4 °F | 18.5 °F | 0.58 in. |
| February | 3.2 °F | 23.3 °F | 0.56 in. |
| March | 15.4 °F | 35.5 °F | 0.76 in. |
| April | 28.7 °F | 53.0 °F | 1.0 in. |
| May | 41.7 °F | 66.3 °F | 2.73 in. |
| June | 52.7 °F | 75.0 °F | 3.83 in. |
| July | 56.9 °F | 80.6 °F | 2.74 in. |
| August | 54.0 °F | 80.8 °F | 2.06 in. |
| September | 44.7 °F | 71.1 °F | 1.65 in. |
| October | 31.7 °F | 55.0 °F | 1.39 in. |
| November | 17.7 °F | 37.0 °F | 0.83 in. |
| December | 5.5 °F | 23.5 °F | 0.68 in. |
| Annual | 29.3 °F | 51.6 °F | 18.81 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 |