South Boardman, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.2 °F (low) to 54.3 °F (high). Annual precipitation averages 35.6 Inches. South Boardman is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.3 °F | 26.7 °F | 2.3 in. |
| February | 11.8 °F | 29.4 °F | 1.91 in. |
| March | 19.1 °F | 39.8 °F | 2.09 in. |
| April | 30.1 °F | 52.8 °F | 3.27 in. |
| May | 41.6 °F | 66.4 °F | 3.25 in. |
| June | 51.6 °F | 76.0 °F | 3.29 in. |
| July | 55.7 °F | 80.0 °F | 3.07 in. |
| August | 54.6 °F | 78.1 °F | 3.23 in. |
| September | 47.5 °F | 70.6 °F | 3.43 in. |
| October | 37.4 °F | 56.8 °F | 4.1 in. |
| November | 28.3 °F | 43.0 °F | 3.12 in. |
| December | 19.8 °F | 32.1 °F | 2.53 in. |
| Annual | 34.2 °F | 54.3 °F | 35.59 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |