Cattaraugus, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.4 °C (low) to 13.3 °C (high). Annual precipitation averages 1238.8 Millimeters. Cattaraugus 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.4 °C | -0.7 °C | 99.57 mm |
| February | -9.3 °C | 0.5 °C | 71.37 mm |
| March | -5.7 °C | 5.2 °C | 90.42 mm |
| April | 0.4 °C | 12.8 °C | 96.27 mm |
| May | 6.8 °C | 19.7 °C | 94.23 mm |
| June | 11.7 °C | 24 °C | 113.54 mm |
| July | 14.1 °C | 26.1 °C | 124.46 mm |
| August | 13.4 °C | 25.3 °C | 115.82 mm |
| September | 9.8 °C | 21.8 °C | 114.3 mm |
| October | 3.9 °C | 14.9 °C | 112.78 mm |
| November | -1.1 °C | 7.9 °C | 104.14 mm |
| December | -5.5 °C | 2.1 °C | 101.85 mm |
| Annual | 2.4 °C | 13.3 °C | 1238.75 mm |
| 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 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 |