Monango, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.7 °F (low) to 53 °F (high). Annual precipitation averages 22.6 Inches. Monango 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 | 2.0 °F | 20.4 °F | 0.54 in. |
| February | 5.9 °F | 25.2 °F | 0.61 in. |
| March | 17.9 °F | 37.6 °F | 0.99 in. |
| April | 30.7 °F | 53.9 °F | 1.61 in. |
| May | 44.0 °F | 67.0 °F | 3.26 in. |
| June | 54.9 °F | 76.5 °F | 3.94 in. |
| July | 59.1 °F | 81.7 °F | 3.36 in. |
| August | 56.3 °F | 80.5 °F | 2.45 in. |
| September | 46.9 °F | 72.0 °F | 2.42 in. |
| October | 33.8 °F | 56.3 °F | 2.01 in. |
| November | 20.2 °F | 39.2 °F | 0.69 in. |
| December | 8.6 °F | 25.5 °F | 0.68 in. |
| Annual | 31.7 °F | 53 °F | 22.56 in. |
| 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 : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |