West Chazy, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.3 °C (low) to 12.6 °C (high). Annual precipitation averages 946.9 Millimeters. West Chazy is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.8 °C | -3 °C | 64.52 mm |
| February | -11.8 °C | -1.4 °C | 49.28 mm |
| March | -6.3 °C | 3.7 °C | 57.66 mm |
| April | 1.1 °C | 11.9 °C | 76.71 mm |
| May | 7.8 °C | 19.6 °C | 83.57 mm |
| June | 13.1 °C | 24.2 °C | 106.17 mm |
| July | 15.9 °C | 26.7 °C | 94.23 mm |
| August | 14.8 °C | 25.9 °C | 95.5 mm |
| September | 10.6 °C | 21.8 °C | 81.79 mm |
| October | 4.4 °C | 14.3 °C | 97.03 mm |
| November | -1.4 °C | 7.1 °C | 68.33 mm |
| December | -7.7 °C | 0.8 °C | 72.14 mm |
| Annual | 2.3 °C | 12.6 °C | 946.93 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |