West Nyack, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 16.7 °C (high). Annual precipitation averages 1227.1 Millimeters. West Nyack is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 3.3 °C | 90.17 mm |
| February | -4.8 °C | 4.9 °C | 67.82 mm |
| March | -0.9 °C | 9.3 °C | 102.87 mm |
| April | 4.8 °C | 16.2 °C | 99.31 mm |
| May | 10.3 °C | 21.8 °C | 93.73 mm |
| June | 15.4 °C | 26.6 °C | 119.63 mm |
| July | 18.3 °C | 29.3 °C | 109.98 mm |
| August | 17.4 °C | 28.3 °C | 120.65 mm |
| September | 13.3 °C | 24.7 °C | 111.25 mm |
| October | 6.9 °C | 17.9 °C | 111 mm |
| November | 1.5 °C | 11.9 °C | 95.76 mm |
| December | -2.6 °C | 5.9 °C | 104.9 mm |
| Annual | 6.1 °C | 16.7 °C | 1227.07 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |