Adams, 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 12.7 °C (high). Annual precipitation averages 1217.9 Millimeters. Adams is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.7 °C | -1.8 °C | 112.27 mm |
| February | -11.3 °C | -0.8 °C | 84.58 mm |
| March | -6.2 °C | 3.8 °C | 81.79 mm |
| April | 0.8 °C | 11.7 °C | 94.49 mm |
| May | 7.4 °C | 19 °C | 93.47 mm |
| June | 12.4 °C | 23.6 °C | 95.25 mm |
| July | 15.3 °C | 26 °C | 90.68 mm |
| August | 14.5 °C | 25.6 °C | 97.79 mm |
| September | 10.3 °C | 21.8 °C | 104.14 mm |
| October | 4.6 °C | 14.6 °C | 132.33 mm |
| November | -1.2 °C | 7.7 °C | 113.54 mm |
| December | -7 °C | 1.4 °C | 117.6 mm |
| Annual | 2.3 °C | 12.7 °C | 1217.93 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |