Pembina, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2 °C (low) to 9.1 °C (high). Annual precipitation averages 578.1 Millimeters. Pembina 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. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -20.4 °C | -10.9 °C | 18.8 mm |
| February | -18.8 °C | -8.2 °C | 18.8 mm |
| March | -10.7 °C | -0.8 °C | 23.37 mm |
| April | -1.6 °C | 9.9 °C | 28.7 mm |
| May | 5.4 °C | 18.2 °C | 80.77 mm |
| June | 11.8 °C | 23.6 °C | 100.84 mm |
| July | 13.8 °C | 26 °C | 85.6 mm |
| August | 12.1 °C | 25.7 °C | 66.29 mm |
| September | 7.4 °C | 20.5 °C | 61.21 mm |
| October | 0.6 °C | 11.4 °C | 43.43 mm |
| November | -7.7 °C | 1.1 °C | 26.92 mm |
| December | -15.9 °C | -7.1 °C | 23.37 mm |
| Annual | -2 °C | 9.1 °C | 578.1 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |