Chazy, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.6 °F (low) to 54.9 °F (high). Annual precipitation averages 37 Inches. Chazy is located in USDA Plant Hardiness Zone 4b. 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 | 9.3 °F | 26.6 °F | 2.69 in. |
| February | 10.9 °F | 29.4 °F | 1.91 in. |
| March | 20.9 °F | 38.7 °F | 2.14 in. |
| April | 34.3 °F | 53.7 °F | 2.97 in. |
| May | 46.5 °F | 67.5 °F | 3.24 in. |
| June | 56.2 °F | 75.7 °F | 4.21 in. |
| July | 61.3 °F | 80.2 °F | 3.68 in. |
| August | 59.2 °F | 79.0 °F | 3.83 in. |
| September | 51.8 °F | 71.5 °F | 3.2 in. |
| October | 40.5 °F | 57.9 °F | 3.72 in. |
| November | 30.0 °F | 45.0 °F | 2.52 in. |
| December | 18.3 °F | 33.4 °F | 2.89 in. |
| Annual | 36.6 °F | 54.9 °F | 37 in. |
| 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |