Rochester, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.8 °C (low) to 15.3 °C (high). Annual precipitation averages 1022.6 Millimeters. 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 | -7.6 °C | 0.9 °C | 72.14 mm |
| February | -6.8 °C | 2.3 °C | 57.91 mm |
| March | -2.4 °C | 7.7 °C | 73.66 mm |
| April | 3.5 °C | 15.3 °C | 98.81 mm |
| May | 9.6 °C | 21.3 °C | 99.06 mm |
| June | 14.8 °C | 26.2 °C | 107.44 mm |
| July | 16.8 °C | 28.2 °C | 105.16 mm |
| August | 15.8 °C | 27.3 °C | 99.31 mm |
| September | 11.7 °C | 24 °C | 85.09 mm |
| October | 5.7 °C | 17.2 °C | 81.03 mm |
| November | 0.6 °C | 9.9 °C | 74.17 mm |
| December | -4.2 °C | 3.6 °C | 68.83 mm |
| Annual | 4.8 °C | 15.3 °C | 1022.61 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |