Depew, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.3 °C (low) to 13.8 °C (high). Annual precipitation averages 1065 Millimeters. Depew is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.7 °C | 0.2 °C | 84.07 mm |
| February | -7.7 °C | 0.8 °C | 63.25 mm |
| March | -3.8 °C | 5.4 °C | 80.01 mm |
| April | 2.1 °C | 12.7 °C | 85.09 mm |
| May | 8.4 °C | 19.5 °C | 84.07 mm |
| June | 13.8 °C | 24.2 °C | 99.57 mm |
| July | 16.4 °C | 26.7 °C | 88.14 mm |
| August | 15.7 °C | 26.2 °C | 84.33 mm |
| September | 11.8 °C | 22.6 °C | 105.66 mm |
| October | 5.8 °C | 15.6 °C | 104.14 mm |
| November | 0.6 °C | 8.8 °C | 95.25 mm |
| December | -4.1 °C | 3.1 °C | 91.44 mm |
| Annual | 4.3 °C | 13.8 °C | 1065.02 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°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 |