Barton, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2.6 °C (low) to 10 °C (high). Annual precipitation averages 477 Millimeters. Barton 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 | -19.9 °C | -9 °C | 12.45 mm |
| February | -17.9 °C | -6.3 °C | 12.19 mm |
| March | -10.6 °C | 0.7 °C | 18.8 mm |
| April | -2.4 °C | 10.8 °C | 23.88 mm |
| May | 4.8 °C | 18.6 °C | 63.5 mm |
| June | 10.9 °C | 23.6 °C | 96.01 mm |
| July | 13.2 °C | 26.6 °C | 78.99 mm |
| August | 11.6 °C | 26.6 °C | 58.67 mm |
| September | 6.2 °C | 21.1 °C | 43.18 mm |
| October | -1.1 °C | 11.9 °C | 34.29 mm |
| November | -9.1 °C | 1.8 °C | 18.8 mm |
| December | -16.3 °C | -6.1 °C | 16.26 mm |
| Annual | -2.6 °C | 10 °C | 477.02 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 |