Amsterdam, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.4 °F (low) to 57.9 °F (high). Annual precipitation averages 42.5 Inches. Amsterdam is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.5 °F | 31.2 °F | 3.15 in. |
| February | 15.8 °F | 34.0 °F | 2.51 in. |
| March | 24.0 °F | 42.6 °F | 3.29 in. |
| April | 35.9 °F | 57.3 °F | 3.45 in. |
| May | 47.5 °F | 69.6 °F | 3.49 in. |
| June | 56.2 °F | 77.7 °F | 4.52 in. |
| July | 61.6 °F | 82.3 °F | 4.31 in. |
| August | 59.6 °F | 80.7 °F | 3.93 in. |
| September | 52.3 °F | 73.6 °F | 3.52 in. |
| October | 40.9 °F | 61.2 °F | 3.89 in. |
| November | 30.6 °F | 47.6 °F | 3.23 in. |
| December | 21.8 °F | 36.4 °F | 3.22 in. |
| Annual | 38.4 °F | 57.9 °F | 42.51 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°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 |