Wahkon, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.7 °F (low) to 51.2 °F (high). Annual precipitation averages 30.7 Inches. Wahkon 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.4 °F | 19.4 °F | 0.64 in. |
| February | 3.0 °F | 25.0 °F | 0.78 in. |
| March | 15.9 °F | 37.4 °F | 1.48 in. |
| April | 30.1 °F | 51.4 °F | 2.62 in. |
| May | 42.5 °F | 64.9 °F | 3.64 in. |
| June | 52.7 °F | 74.4 °F | 4.56 in. |
| July | 57.1 °F | 78.8 °F | 4.48 in. |
| August | 54.6 °F | 76.8 °F | 3.96 in. |
| September | 46.7 °F | 68.8 °F | 3.0 in. |
| October | 35.0 °F | 54.2 °F | 3.06 in. |
| November | 22.2 °F | 38.2 °F | 1.5 in. |
| December | 9.0 °F | 24.9 °F | 1.02 in. |
| Annual | 30.7 °F | 51.2 °F | 30.74 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |