Roessleville, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.1 °C (low) to 14.8 °C (high). Annual precipitation averages 1036.1 Millimeters. Roessleville 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.1 °C | 0.2 °C | 67.31 mm |
| February | -8.3 °C | 1.8 °C | 59.69 mm |
| March | -3.7 °C | 6.7 °C | 75.69 mm |
| April | 2.7 °C | 14.6 °C | 78.74 mm |
| May | 9.1 °C | 21.1 °C | 82.04 mm |
| June | 14.2 °C | 25.7 °C | 109.22 mm |
| July | 16.7 °C | 28.3 °C | 111.25 mm |
| August | 15.9 °C | 27.2 °C | 99.06 mm |
| September | 11.5 °C | 23.3 °C | 93.22 mm |
| October | 5.3 °C | 16.1 °C | 101.6 mm |
| November | -0.2 °C | 9.3 °C | 72.9 mm |
| December | -5.1 °C | 3.1 °C | 85.34 mm |
| Annual | 4.1 °C | 14.8 °C | 1036.06 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |