East Otto, 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 12.3 °C (high). Annual precipitation averages 1229.4 Millimeters. East Otto 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 | -9.2 °C | -1.8 °C | 100.58 mm |
| February | -8.8 °C | -0.6 °C | 70.87 mm |
| March | -5.6 °C | 4 °C | 85.85 mm |
| April | 0.7 °C | 11.8 °C | 96.27 mm |
| May | 7.2 °C | 18.7 °C | 95.5 mm |
| June | 12 °C | 23.1 °C | 115.32 mm |
| July | 14.7 °C | 25.1 °C | 121.67 mm |
| August | 13.9 °C | 24.4 °C | 108.97 mm |
| September | 10.3 °C | 20.9 °C | 111 mm |
| October | 4.2 °C | 14.1 °C | 112.01 mm |
| November | -1.1 °C | 6.7 °C | 105.66 mm |
| December | -5.8 °C | 0.9 °C | 105.66 mm |
| Annual | 2.7 °C | 12.3 °C | 1229.36 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 |