Lorraine, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.6 °C (low) to 12 °C (high). Annual precipitation averages 1340.6 Millimeters. Lorraine is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.3 °C | -2.7 °C | 121.67 mm |
| February | -11.7 °C | -1.6 °C | 93.98 mm |
| March | -6.9 °C | 3.2 °C | 91.19 mm |
| April | 0.2 °C | 10.9 °C | 100.33 mm |
| May | 6.9 °C | 18.6 °C | 104.65 mm |
| June | 11.8 °C | 22.8 °C | 100.33 mm |
| July | 14.3 °C | 25.2 °C | 102.36 mm |
| August | 13.6 °C | 25.1 °C | 107.7 mm |
| September | 9.3 °C | 21.2 °C | 116.84 mm |
| October | 3.7 °C | 14.1 °C | 145.8 mm |
| November | -2.1 °C | 6.8 °C | 126.24 mm |
| December | -8.1 °C | 0.4 °C | 129.54 mm |
| Annual | 1.6 °C | 12 °C | 1340.63 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°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 |