Gardiner, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.1 °C (low) to 16.1 °C (high). Annual precipitation averages 1218.9 Millimeters. Gardiner is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.4 °C | 2 °C | 89.15 mm |
| February | -7.6 °C | 3.6 °C | 67.56 mm |
| March | -3.1 °C | 8.3 °C | 97.79 mm |
| April | 3 °C | 15.8 °C | 95.76 mm |
| May | 8.7 °C | 21.9 °C | 92.46 mm |
| June | 13.7 °C | 26.6 °C | 119.63 mm |
| July | 16.5 °C | 29.4 °C | 117.86 mm |
| August | 15.6 °C | 28.4 °C | 114.55 mm |
| September | 11.3 °C | 24.4 °C | 116.33 mm |
| October | 5.1 °C | 17.4 °C | 108.97 mm |
| November | -0.2 °C | 10.8 °C | 90.17 mm |
| December | -4.9 °C | 4.7 °C | 108.71 mm |
| Annual | 4.1 °C | 16.1 °C | 1218.94 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |