Fingal, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.6 °C (low) to 10.9 °C (high). Annual precipitation averages 571.3 Millimeters. Fingal 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 | -17.9 °C | -8.2 °C | 14.22 mm |
| February | -15.7 °C | -5.3 °C | 14.22 mm |
| March | -8.7 °C | 1.7 °C | 23.62 mm |
| April | -0.9 °C | 11.3 °C | 30.23 mm |
| May | 6.4 °C | 19.2 °C | 80.77 mm |
| June | 12.7 °C | 24.6 °C | 103.38 mm |
| July | 14.9 °C | 27.1 °C | 82.3 mm |
| August | 13.3 °C | 26.4 °C | 65.79 mm |
| September | 8.2 °C | 21.9 °C | 68.58 mm |
| October | 1.1 °C | 13.2 °C | 52.58 mm |
| November | -6.8 °C | 3.3 °C | 17.78 mm |
| December | -13.6 °C | -4.7 °C | 17.78 mm |
| Annual | -0.6 °C | 10.9 °C | 571.25 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |