Carson, North Dakota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from -0.9 °C (low) to 12.3 °C (high). Annual precipitation averages 444 Millimeters. Carson is located in USDA Plant Hardiness Zone 4a. 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 | -15.5 °C | -4.4 °C | 9.14 mm |
| February | -13.5 °C | -2 °C | 14.22 mm |
| March | -7.8 °C | 4.6 °C | 19.3 mm |
| April | -1.8 °C | 12.3 °C | 33.02 mm |
| May | 4.8 °C | 18.6 °C | 66.04 mm |
| June | 10.6 °C | 23.7 °C | 83.57 mm |
| July | 13.6 °C | 27.9 °C | 68.33 mm |
| August | 12.4 °C | 27.8 °C | 47.24 mm |
| September | 7.1 °C | 22.3 °C | 37.59 mm |
| October | -0.2 °C | 13.6 °C | 37.59 mm |
| November | -7.4 °C | 4.8 °C | 16.51 mm |
| December | -13.2 °C | -2 °C | 11.43 mm |
| Annual | -0.9 °C | 12.3 °C | 443.98 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 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 | Dwb - Humid Continental Mild Summer With Dry Winters |