Fowlerville, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.1 °F (low) to 57.6 °F (high). Annual precipitation averages 33.8 Inches. Fowlerville is located in USDA Plant Hardiness Zone 6a. 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 | 15.6 °F | 30.5 °F | 2.23 in. |
| February | 16.1 °F | 33.3 °F | 1.77 in. |
| March | 24.4 °F | 43.6 °F | 2.07 in. |
| April | 35.7 °F | 56.8 °F | 3.23 in. |
| May | 46.9 °F | 68.8 °F | 3.75 in. |
| June | 56.4 °F | 78.2 °F | 3.68 in. |
| July | 59.8 °F | 82.2 °F | 3.26 in. |
| August | 58.4 °F | 80.3 °F | 3.3 in. |
| September | 51.0 °F | 74.1 °F | 3.08 in. |
| October | 40.0 °F | 60.9 °F | 2.88 in. |
| November | 30.6 °F | 47.2 °F | 2.48 in. |
| December | 22.2 °F | 35.5 °F | 2.04 in. |
| Annual | 38.1 °F | 57.6 °F | 33.77 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |