Bangor, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.7 °F (low) to 58.1 °F (high). Annual precipitation averages 39.8 Inches. Bangor 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.2 °F | 31.7 °F | 2.99 in. |
| February | 19.4 °F | 34.3 °F | 2.22 in. |
| March | 26.5 °F | 44.5 °F | 2.38 in. |
| April | 36.9 °F | 57.0 °F | 3.52 in. |
| May | 48.0 °F | 68.6 °F | 4.08 in. |
| June | 55.9 °F | 78.1 °F | 3.88 in. |
| July | 61.1 °F | 82.2 °F | 3.53 in. |
| August | 59.9 °F | 80.7 °F | 3.9 in. |
| September | 52.2 °F | 74.4 °F | 3.41 in. |
| October | 41.4 °F | 61.2 °F | 4.08 in. |
| November | 32.5 °F | 48.1 °F | 3.07 in. |
| December | 24.4 °F | 36.6 °F | 2.75 in. |
| Annual | 39.7 °F | 58.1 °F | 39.81 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |