Moira, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2 °C (low) to 12.5 °C (high). Annual precipitation averages 1014 Millimeters. Moira is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.3 °C | -3.6 °C | 69.34 mm |
| February | -12.6 °C | -2.1 °C | 55.63 mm |
| March | -6.7 °C | 3.3 °C | 62.99 mm |
| April | 0.9 °C | 11.7 °C | 84.07 mm |
| May | 7.7 °C | 19.6 °C | 85.6 mm |
| June | 13.1 °C | 24.3 °C | 105.16 mm |
| July | 15.6 °C | 26.8 °C | 100.84 mm |
| August | 14.5 °C | 25.9 °C | 91.69 mm |
| September | 10.1 °C | 21.8 °C | 95.5 mm |
| October | 4.2 °C | 14.3 °C | 105.92 mm |
| November | -1.7 °C | 7.2 °C | 80.77 mm |
| December | -8.3 °C | 0.2 °C | 76.45 mm |
| Annual | 2 °C | 12.5 °C | 1013.96 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |