Elmira, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.7 °C (low) to 15 °C (high). Annual precipitation averages 933.2 Millimeters. Elmira 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 | -9.1 °C | 0.8 °C | 53.59 mm |
| February | -8.8 °C | 2.2 °C | 46.74 mm |
| March | -4.8 °C | 6.9 °C | 69.09 mm |
| April | 0.8 °C | 14.4 °C | 83.57 mm |
| May | 7 °C | 21.3 °C | 80.01 mm |
| June | 12.1 °C | 25.8 °C | 99.31 mm |
| July | 14.5 °C | 28.4 °C | 98.04 mm |
| August | 13.8 °C | 27.5 °C | 90.17 mm |
| September | 9.8 °C | 23.6 °C | 95 mm |
| October | 3.7 °C | 16.3 °C | 88.65 mm |
| November | -1.3 °C | 9.4 °C | 65.79 mm |
| December | -5.3 °C | 3.4 °C | 63.25 mm |
| Annual | 2.7 °C | 15 °C | 933.21 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |