Loma, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 27.3 °F (low) to 47.8 °F (high). Annual precipitation averages 20.4 Inches. Loma 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.4 °F | 13.4 °F | 0.52 in. |
| February | -1.6 °F | 18.0 °F | 0.48 in. |
| March | 12.0 °F | 30.4 °F | 0.72 in. |
| April | 27.7 °F | 48.6 °F | 0.97 in. |
| May | 40.4 °F | 63.5 °F | 2.85 in. |
| June | 51.9 °F | 72.8 °F | 3.94 in. |
| July | 55.7 °F | 77.5 °F | 3.4 in. |
| August | 53.1 °F | 77.5 °F | 2.46 in. |
| September | 43.7 °F | 68.1 °F | 2.0 in. |
| October | 30.8 °F | 51.8 °F | 1.51 in. |
| November | 16.1 °F | 33.4 °F | 0.82 in. |
| December | 2.6 °F | 18.8 °F | 0.7 in. |
| Annual | 27.3 °F | 47.8 °F | 20.37 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 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 |