Wyndmere, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.3 °F (low) to 52.3 °F (high). Annual precipitation averages 24.2 Inches. Wyndmere is located in USDA Plant Hardiness Zone 4a. 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 | 0.8 °F | 18.6 °F | 0.67 in. |
| February | 5.0 °F | 23.3 °F | 0.63 in. |
| March | 17.9 °F | 36.0 °F | 1.0 in. |
| April | 32.1 °F | 53.1 °F | 1.72 in. |
| May | 45.2 °F | 67.3 °F | 3.09 in. |
| June | 56.4 °F | 76.7 °F | 4.42 in. |
| July | 60.2 °F | 81.2 °F | 3.5 in. |
| August | 57.1 °F | 79.9 °F | 2.65 in. |
| September | 47.9 °F | 71.9 °F | 2.65 in. |
| October | 35.0 °F | 56.6 °F | 2.32 in. |
| November | 21.2 °F | 38.8 °F | 0.81 in. |
| December | 8.4 °F | 24.7 °F | 0.76 in. |
| Annual | 32.3 °F | 52.3 °F | 24.22 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 4a : -30°F to -25°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 |