Orchard Park, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.7 °C (low) to 13.7 °C (high). Annual precipitation averages 1116.1 Millimeters. Orchard Park 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 | -8.4 °C | 0.1 °C | 89.41 mm |
| February | -8.2 °C | 0.9 °C | 65.02 mm |
| March | -4.5 °C | 5.6 °C | 80.26 mm |
| April | 1.4 °C | 12.8 °C | 84.33 mm |
| May | 7.8 °C | 19.4 °C | 88.39 mm |
| June | 13 °C | 24.1 °C | 103.63 mm |
| July | 15.7 °C | 26.3 °C | 97.79 mm |
| August | 15 °C | 26 °C | 90.68 mm |
| September | 11.3 °C | 22.4 °C | 107.19 mm |
| October | 5.6 °C | 15.5 °C | 110.49 mm |
| November | 0.3 °C | 8.8 °C | 97.79 mm |
| December | -4.6 °C | 2.9 °C | 101.09 mm |
| Annual | 3.7 °C | 13.7 °C | 1116.07 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |