Wheeler, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.3 °C (low) to 13.5 °C (high). Annual precipitation averages 946.2 Millimeters. Wheeler 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.6 °C | -0.8 °C | 58.93 mm |
| February | -10.3 °C | 0.5 °C | 47.24 mm |
| March | -6.6 °C | 5.3 °C | 65.79 mm |
| April | -0.8 °C | 12.7 °C | 77.47 mm |
| May | 5.4 °C | 19.7 °C | 86.11 mm |
| June | 10.7 °C | 24.6 °C | 100.08 mm |
| July | 13.2 °C | 26.9 °C | 97.79 mm |
| August | 12.4 °C | 26.1 °C | 90.93 mm |
| September | 8.6 °C | 22.1 °C | 95.76 mm |
| October | 2.9 °C | 15.3 °C | 92.2 mm |
| November | -2.3 °C | 7.8 °C | 70.1 mm |
| December | -6.7 °C | 2 °C | 63.75 mm |
| Annual | 1.3 °C | 13.5 °C | 946.15 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 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 |