Logan, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.5 °C (low) to 10.9 °C (high). Annual precipitation averages 477.8 Millimeters. 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 | -18 °C | -7.5 °C | 14.73 mm |
| February | -16 °C | -4.8 °C | 14.22 mm |
| March | -9.2 °C | 1.9 °C | 19.3 mm |
| April | -1.8 °C | 11.7 °C | 25.4 mm |
| May | 5.4 °C | 19.1 °C | 69.34 mm |
| June | 11.5 °C | 23.9 °C | 97.28 mm |
| July | 13.8 °C | 27 °C | 69.6 mm |
| August | 12.2 °C | 27.1 °C | 52.32 mm |
| September | 7.1 °C | 21.7 °C | 41.91 mm |
| October | -0.2 °C | 12.8 °C | 35.31 mm |
| November | -7.9 °C | 2.8 °C | 21.08 mm |
| December | -14.7 °C | -4.7 °C | 17.27 mm |
| Annual | -1.5 °C | 10.9 °C | 477.76 mm |
| 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 : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |