Sherwood, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 27.8 °F (low) to 49.7 °F (high). Annual precipitation averages 17.3 Inches. Sherwood 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 | -2.3 °F | 15.9 °F | 0.44 in. |
| February | 1.5 °F | 20.7 °F | 0.36 in. |
| March | 13.6 °F | 32.6 °F | 0.69 in. |
| April | 27.8 °F | 51.5 °F | 0.9 in. |
| May | 40.3 °F | 64.9 °F | 2.61 in. |
| June | 51.2 °F | 73.6 °F | 3.69 in. |
| July | 55.1 °F | 79.2 °F | 2.7 in. |
| August | 52.6 °F | 79.7 °F | 2.06 in. |
| September | 43.4 °F | 69.9 °F | 1.51 in. |
| October | 30.4 °F | 53.3 °F | 1.17 in. |
| November | 16.3 °F | 34.7 °F | 0.57 in. |
| December | 3.5 °F | 20.9 °F | 0.59 in. |
| Annual | 27.8 °F | 49.7 °F | 17.29 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 3b : -35°F to -30°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |