Cooperstown, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2 °C (low) to 13.5 °C (high). Annual precipitation averages 1180.8 Millimeters. Cooperstown is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.6 °C | -0.6 °C | 82.04 mm |
| February | -10.1 °C | 0.9 °C | 73.15 mm |
| March | -6.2 °C | 5.3 °C | 91.69 mm |
| April | 0.2 °C | 12.9 °C | 103.12 mm |
| May | 6.4 °C | 19.9 °C | 95 mm |
| June | 11.5 °C | 24.1 °C | 116.59 mm |
| July | 14.1 °C | 26.6 °C | 117.09 mm |
| August | 13.3 °C | 25.7 °C | 115.57 mm |
| September | 9.3 °C | 21.9 °C | 100.58 mm |
| October | 3.6 °C | 15.1 °C | 110.24 mm |
| November | -1.7 °C | 8.1 °C | 85.85 mm |
| December | -6.4 °C | 2.2 °C | 89.92 mm |
| Annual | 2 °C | 13.5 °C | 1180.84 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |