Tannersville, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.3 °C (low) to 13.2 °C (high). Annual precipitation averages 1479.3 Millimeters. Tannersville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.6 °C | -0.1 °C | 108.2 mm |
| February | -11.2 °C | 1.4 °C | 94.23 mm |
| March | -7.6 °C | 5.3 °C | 128.52 mm |
| April | -1.2 °C | 12.4 °C | 118.36 mm |
| May | 4.6 °C | 19 °C | 106.68 mm |
| June | 9.5 °C | 23.4 °C | 126.49 mm |
| July | 11.8 °C | 25.8 °C | 122.94 mm |
| August | 11.1 °C | 24.9 °C | 113.54 mm |
| September | 7.3 °C | 21.3 °C | 135.38 mm |
| October | 1.6 °C | 14.6 °C | 160.02 mm |
| November | -3.2 °C | 8.1 °C | 125.98 mm |
| December | -7.6 °C | 2.3 °C | 138.94 mm |
| Annual | 0.3 °C | 13.2 °C | 1479.28 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |