Byron Center, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.6 °C (low) to 13.8 °C (high). Annual precipitation averages 1014.2 Millimeters. Byron Center 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.2 °C | -1 °C | 78.99 mm |
| February | -8.1 °C | 0.4 °C | 57.91 mm |
| March | -4.1 °C | 6.1 °C | 62.74 mm |
| April | 1.9 °C | 13.5 °C | 101.09 mm |
| May | 8.1 °C | 19.9 °C | 107.19 mm |
| June | 13.6 °C | 25.1 °C | 97.79 mm |
| July | 15.6 °C | 27.3 °C | 87.63 mm |
| August | 14.9 °C | 26.4 °C | 86.36 mm |
| September | 10.6 °C | 22.8 °C | 84.84 mm |
| October | 4.7 °C | 15.6 °C | 97.79 mm |
| November | -0.5 °C | 7.9 °C | 81.79 mm |
| December | -4.8 °C | 1.8 °C | 70.1 mm |
| Annual | 3.6 °C | 13.8 °C | 1014.22 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |