Breesport, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.9 °C (low) to 14.1 °C (high). Annual precipitation averages 959.4 Millimeters. Breesport 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 °C | -0.1 °C | 57.4 mm |
| February | -9.7 °C | 1.2 °C | 48.51 mm |
| March | -5.8 °C | 5.8 °C | 69.6 mm |
| April | -0.1 °C | 13.4 °C | 83.82 mm |
| May | 6.1 °C | 20.5 °C | 81.79 mm |
| June | 11.3 °C | 24.8 °C | 103.63 mm |
| July | 13.6 °C | 27.3 °C | 96.27 mm |
| August | 12.9 °C | 26.6 °C | 91.19 mm |
| September | 9.1 °C | 22.7 °C | 98.55 mm |
| October | 3.2 °C | 15.7 °C | 93.22 mm |
| November | -1.9 °C | 8.6 °C | 70.87 mm |
| December | -6.2 °C | 2.6 °C | 64.52 mm |
| Annual | 1.9 °C | 14.1 °C | 959.37 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°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 |