Bangor, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.8 °F (low) to 53.9 °F (high). Annual precipitation averages 40.2 Inches. Bangor is located in USDA Plant Hardiness Zone 4b. 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 | 7.4 °F | 25.4 °F | 2.58 in. |
| February | 8.9 °F | 28.2 °F | 2.08 in. |
| March | 19.1 °F | 37.7 °F | 2.42 in. |
| April | 32.7 °F | 52.6 °F | 3.24 in. |
| May | 44.9 °F | 66.5 °F | 3.39 in. |
| June | 55.0 °F | 75.3 °F | 4.36 in. |
| July | 59.5 °F | 79.3 °F | 4.08 in. |
| August | 57.5 °F | 77.8 °F | 4.01 in. |
| September | 49.5 °F | 70.6 °F | 3.81 in. |
| October | 38.8 °F | 57.2 °F | 4.2 in. |
| November | 28.4 °F | 44.4 °F | 3.13 in. |
| December | 16.4 °F | 32.0 °F | 2.94 in. |
| Annual | 34.8 °F | 53.9 °F | 40.24 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |