Esperance, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.2 °C (low) to 14.4 °C (high). Annual precipitation averages 997.7 Millimeters. Esperance is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.8 °C | -0.3 °C | 64.52 mm |
| February | -9.2 °C | 1.3 °C | 57.15 mm |
| March | -4.8 °C | 6.2 °C | 76.71 mm |
| April | 1.7 °C | 14.2 °C | 83.31 mm |
| May | 8.1 °C | 20.8 °C | 87.38 mm |
| June | 13.1 °C | 25.3 °C | 104.65 mm |
| July | 15.8 °C | 27.9 °C | 105.41 mm |
| August | 14.8 °C | 27 °C | 96.52 mm |
| September | 10.7 °C | 22.9 °C | 78.23 mm |
| October | 4.5 °C | 15.9 °C | 98.81 mm |
| November | -1.1 °C | 8.9 °C | 65.53 mm |
| December | -5.9 °C | 2.6 °C | 79.5 mm |
| Annual | 3.2 °C | 14.4 °C | 997.72 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |