Mechanicville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.9 °F (low) to 59.2 °F (high). Annual precipitation averages 41.7 Inches. Mechanicville is located in USDA Plant Hardiness Zone 6a. 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 | 16.2 °F | 32.6 °F | 2.94 in. |
| February | 17.5 °F | 35.6 °F | 1.99 in. |
| March | 26.0 °F | 44.6 °F | 2.78 in. |
| April | 37.5 °F | 58.7 °F | 3.32 in. |
| May | 48.9 °F | 70.6 °F | 3.46 in. |
| June | 58.0 °F | 78.9 °F | 4.68 in. |
| July | 62.3 °F | 84.7 °F | 4.41 in. |
| August | 61.2 °F | 81.6 °F | 4.19 in. |
| September | 53.3 °F | 74.4 °F | 3.81 in. |
| October | 42.2 °F | 61.5 °F | 3.98 in. |
| November | 32.4 °F | 48.9 °F | 2.97 in. |
| December | 23.6 °F | 37.9 °F | 3.16 in. |
| Annual | 39.9 °F | 59.2 °F | 41.69 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |