Berlin, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.4 °C (low) to 11.5 °C (high). Annual precipitation averages 572 Millimeters. Berlin is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.2 °C | -6.8 °C | 13.97 mm |
| February | -15.1 °C | -4.2 °C | 15.24 mm |
| March | -8.2 °C | 2.7 °C | 26.92 mm |
| April | -0.9 °C | 12.1 °C | 39.88 mm |
| May | 6.4 °C | 19.4 °C | 80.77 mm |
| June | 12.7 °C | 24.8 °C | 97.28 mm |
| July | 15 °C | 27.6 °C | 87.88 mm |
| August | 13.4 °C | 26.9 °C | 61.21 mm |
| September | 8.2 °C | 22.2 °C | 63.75 mm |
| October | 0.9 °C | 13.4 °C | 50.04 mm |
| November | -6.7 °C | 3.8 °C | 17.27 mm |
| December | -13.3 °C | -3.9 °C | 17.78 mm |
| Annual | -0.4 °C | 11.5 °C | 571.99 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°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 |