Baldwin, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.6 °C (low) to 13.5 °C (high). Annual precipitation averages 922 Millimeters. Baldwin 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 | -10.1 °C | -1.6 °C | 64.26 mm |
| February | -10.4 °C | 0.1 °C | 47.24 mm |
| March | -6.5 °C | 5.7 °C | 57.91 mm |
| April | -0.2 °C | 13.1 °C | 92.46 mm |
| May | 6.1 °C | 20.2 °C | 87.88 mm |
| June | 11.4 °C | 25.3 °C | 98.81 mm |
| July | 13.6 °C | 27.3 °C | 79.25 mm |
| August | 12.6 °C | 26.3 °C | 78.99 mm |
| September | 8.6 °C | 22.3 °C | 82.55 mm |
| October | 2.7 °C | 14.9 °C | 98.55 mm |
| November | -2.1 °C | 7.2 °C | 78.23 mm |
| December | -6.6 °C | 1.1 °C | 55.88 mm |
| Annual | 1.6 °C | 13.5 °C | 922.01 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |