Byersville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.6 °C (low) to 13.4 °C (high). Annual precipitation averages 958.3 Millimeters. Byersville is located in USDA Plant Hardiness Zone 6a. 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 | -9.4 °C | -0.8 °C | 60.71 mm |
| February | -9.3 °C | 0.4 °C | 46.74 mm |
| March | -5.3 °C | 4.7 °C | 64.77 mm |
| April | 0.6 °C | 12.7 °C | 82.8 mm |
| May | 6.9 °C | 19.7 °C | 85.85 mm |
| June | 12.3 °C | 24.2 °C | 94.49 mm |
| July | 14.7 °C | 26.4 °C | 103.63 mm |
| August | 13.7 °C | 25.7 °C | 91.19 mm |
| September | 10.1 °C | 22.1 °C | 96.77 mm |
| October | 4.3 °C | 15.2 °C | 91.44 mm |
| November | -1.1 °C | 7.8 °C | 70.1 mm |
| December | -5.8 °C | 2.2 °C | 69.85 mm |
| Annual | 2.6 °C | 13.4 °C | 958.34 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 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 |