Conesus, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.6 °C (low) to 13.4 °C (high). Annual precipitation averages 950.5 Millimeters. Conesus is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.4 °C | -0.4 °C | 57.15 mm |
| February | -9.2 °C | 0.6 °C | 46.99 mm |
| March | -5.4 °C | 5 °C | 66.29 mm |
| April | 0.5 °C | 12.6 °C | 77.72 mm |
| May | 6.8 °C | 19.6 °C | 83.06 mm |
| June | 12.1 °C | 23.9 °C | 97.03 mm |
| July | 14.6 °C | 26.2 °C | 105.41 mm |
| August | 13.7 °C | 25.4 °C | 92.96 mm |
| September | 10.1 °C | 22 °C | 91.95 mm |
| October | 4.3 °C | 15.1 °C | 95.5 mm |
| November | -0.9 °C | 8.2 °C | 71.37 mm |
| December | -5.7 °C | 2.4 °C | 65.02 mm |
| Annual | 2.6 °C | 13.4 °C | 950.45 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |