Walkerville, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.4 °F (low) to 56 °F (high). Annual precipitation averages 36.4 Inches. Walkerville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.4 °F | 29.2 °F | 2.47 in. |
| February | 14.3 °F | 31.9 °F | 1.79 in. |
| March | 21.1 °F | 42.5 °F | 2.23 in. |
| April | 32.1 °F | 55.0 °F | 3.72 in. |
| May | 43.2 °F | 67.4 °F | 3.7 in. |
| June | 52.7 °F | 76.8 °F | 3.49 in. |
| July | 56.6 °F | 80.4 °F | 3.08 in. |
| August | 55.3 °F | 78.9 °F | 3.21 in. |
| September | 47.8 °F | 72.0 °F | 3.15 in. |
| October | 37.4 °F | 58.9 °F | 4.03 in. |
| November | 28.7 °F | 45.2 °F | 3.02 in. |
| December | 20.7 °F | 34.1 °F | 2.5 in. |
| Annual | 35.4 °F | 56 °F | 36.39 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |