Mandaree, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.8 °F (low) to 53.3 °F (high). Annual precipitation averages 17.7 Inches. Mandaree 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 | 2.6 °F | 22.0 °F | 0.41 in. |
| February | 6.8 °F | 26.7 °F | 0.41 in. |
| March | 17.3 °F | 38.6 °F | 0.61 in. |
| April | 28.7 °F | 54.2 °F | 1.13 in. |
| May | 40.2 °F | 66.0 °F | 2.71 in. |
| June | 50.3 °F | 74.7 °F | 3.47 in. |
| July | 55.3 °F | 82.3 °F | 2.84 in. |
| August | 53.6 °F | 82.3 °F | 1.89 in. |
| September | 43.8 °F | 72.1 °F | 1.82 in. |
| October | 31.6 °F | 55.6 °F | 1.28 in. |
| November | 18.8 °F | 38.7 °F | 0.63 in. |
| December | 8.0 °F | 26.1 °F | 0.51 in. |
| Annual | 29.8 °F | 53.3 °F | 17.71 in. |
| 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 : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |