Fulton, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.6 °C (low) to 13.6 °C (high). Annual precipitation averages 1185.2 Millimeters. Fulton 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.3 °C | -0.6 °C | 104.65 mm |
| February | -8.8 °C | 0.5 °C | 82.3 mm |
| March | -4.7 °C | 4.8 °C | 87.63 mm |
| April | 1.6 °C | 12.7 °C | 97.54 mm |
| May | 8.1 °C | 20.1 °C | 92.2 mm |
| June | 13.1 °C | 24.4 °C | 92.71 mm |
| July | 15.8 °C | 26.8 °C | 94.74 mm |
| August | 15.1 °C | 26.2 °C | 95 mm |
| September | 11.3 °C | 22.4 °C | 97.03 mm |
| October | 5.7 °C | 15.1 °C | 125.73 mm |
| November | 0.3 °C | 8.8 °C | 105.66 mm |
| December | -4.9 °C | 2.4 °C | 109.98 mm |
| Annual | 3.6 °C | 13.6 °C | 1185.17 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |