Dunn Center, North Dakota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from 30.1 °F (low) to 54.1 °F (high). Annual precipitation averages 17.2 Inches. Dunn Center 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 | 3.6 °F | 23.9 °F | 0.37 in. |
| February | 7.5 °F | 28.5 °F | 0.36 in. |
| March | 17.6 °F | 40.0 °F | 0.63 in. |
| April | 28.7 °F | 53.9 °F | 1.14 in. |
| May | 40.6 °F | 66.0 °F | 2.78 in. |
| June | 50.5 °F | 75.1 °F | 3.22 in. |
| July | 55.6 °F | 82.7 °F | 2.67 in. |
| August | 53.9 °F | 82.8 °F | 1.93 in. |
| September | 44.0 °F | 72.8 °F | 1.81 in. |
| October | 31.6 °F | 56.3 °F | 1.27 in. |
| November | 18.8 °F | 39.8 °F | 0.54 in. |
| December | 8.5 °F | 27.7 °F | 0.45 in. |
| Annual | 30.1 °F | 54.1 °F | 17.17 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |