East Rochester, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.3 °F (low) to 60.5 °F (high). Annual precipitation averages 41.2 Inches. East Rochester is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.9 °F | 34.7 °F | 3.05 in. |
| February | 20.0 °F | 37.8 °F | 2.35 in. |
| March | 27.7 °F | 47.4 °F | 3.18 in. |
| April | 38.4 °F | 61.0 °F | 3.68 in. |
| May | 48.4 °F | 71.1 °F | 4.0 in. |
| June | 57.7 °F | 79.6 °F | 4.46 in. |
| July | 61.5 °F | 83.3 °F | 4.23 in. |
| August | 59.6 °F | 82.0 °F | 3.57 in. |
| September | 52.7 °F | 75.8 °F | 3.61 in. |
| October | 41.7 °F | 63.8 °F | 3.14 in. |
| November | 32.6 °F | 50.4 °F | 2.85 in. |
| December | 24.7 °F | 39.6 °F | 3.04 in. |
| Annual | 40.3 °F | 60.5 °F | 41.16 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |