Wendell, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.7 °F (low) to 52 °F (high). Annual precipitation averages 25.7 Inches. Wendell 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 | 1.1 °F | 18.7 °F | 0.71 in. |
| February | 4.4 °F | 23.2 °F | 0.66 in. |
| March | 18.3 °F | 36.4 °F | 1.1 in. |
| April | 32.4 °F | 52.8 °F | 2.09 in. |
| May | 45.6 °F | 66.7 °F | 3.18 in. |
| June | 56.5 °F | 76.1 °F | 4.24 in. |
| July | 60.6 °F | 80.4 °F | 3.71 in. |
| August | 57.8 °F | 78.9 °F | 3.03 in. |
| September | 49.1 °F | 71.3 °F | 2.75 in. |
| October | 35.7 °F | 55.7 °F | 2.5 in. |
| November | 22.0 °F | 38.8 °F | 0.92 in. |
| December | 8.9 °F | 24.9 °F | 0.81 in. |
| Annual | 32.7 °F | 52 °F | 25.7 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 |