East Randolph, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.3 °C (low) to 13.8 °C (high). Annual precipitation averages 1179.1 Millimeters. East Randolph is located in USDA Plant Hardiness Zone 5b. 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 | -9.5 °C | -0.3 °C | 92.46 mm |
| February | -9.3 °C | 1.1 °C | 65.79 mm |
| March | -5.6 °C | 5.8 °C | 80.52 mm |
| April | 0.5 °C | 13.4 °C | 97.79 mm |
| May | 6.6 °C | 20.2 °C | 99.31 mm |
| June | 11.6 °C | 24.6 °C | 113.03 mm |
| July | 13.8 °C | 26.7 °C | 120.65 mm |
| August | 13.2 °C | 25.8 °C | 104.14 mm |
| September | 9.6 °C | 22.3 °C | 105.41 mm |
| October | 3.7 °C | 15.4 °C | 106.93 mm |
| November | -1.2 °C | 8.4 °C | 95.5 mm |
| December | -5.5 °C | 2.6 °C | 97.54 mm |
| Annual | 2.3 °C | 13.8 °C | 1179.07 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |