Byron Center, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.5 °F (low) to 56.9 °F (high). Annual precipitation averages 39.9 Inches. 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 | 17.2 °F | 30.2 °F | 3.11 in. |
| February | 17.5 °F | 32.7 °F | 2.28 in. |
| March | 24.7 °F | 43.0 °F | 2.47 in. |
| April | 35.4 °F | 56.3 °F | 3.98 in. |
| May | 46.5 °F | 67.8 °F | 4.22 in. |
| June | 56.5 °F | 77.2 °F | 3.85 in. |
| July | 60.0 °F | 81.2 °F | 3.45 in. |
| August | 58.8 °F | 79.6 °F | 3.4 in. |
| September | 51.0 °F | 73.0 °F | 3.34 in. |
| October | 40.4 °F | 60.0 °F | 3.85 in. |
| November | 31.1 °F | 46.3 °F | 3.22 in. |
| December | 23.3 °F | 35.3 °F | 2.76 in. |
| Annual | 38.5 °F | 56.9 °F | 39.93 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |