Stronach, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.8 °F (low) to 54.5 °F (high). Annual precipitation averages 35.6 Inches. Stronach is located in USDA Plant Hardiness Zone 6b. 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 | 17.9 °F | 29.2 °F | 2.05 in. |
| February | 18.1 °F | 31.4 °F | 1.55 in. |
| March | 23.7 °F | 40.0 °F | 2.05 in. |
| April | 33.9 °F | 52.5 °F | 3.58 in. |
| May | 44.2 °F | 64.8 °F | 3.37 in. |
| June | 53.5 °F | 74.2 °F | 3.64 in. |
| July | 58.4 °F | 77.9 °F | 3.32 in. |
| August | 57.6 °F | 76.8 °F | 3.26 in. |
| September | 50.6 °F | 70.6 °F | 3.24 in. |
| October | 40.5 °F | 57.7 °F | 3.89 in. |
| November | 31.9 °F | 44.8 °F | 3.05 in. |
| December | 23.6 °F | 34.2 °F | 2.59 in. |
| Annual | 37.8 °F | 54.5 °F | 35.59 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 6b : -5°F to 0°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 |