Rochester, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.3 °F (low) to 57.1 °F (high). Annual precipitation averages 34.5 Inches. Rochester is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.3 °F | 32.8 °F | 2.42 in. |
| February | 18.8 °F | 34.1 °F | 1.92 in. |
| March | 25.8 °F | 42.2 °F | 2.46 in. |
| April | 36.4 °F | 54.5 °F | 2.93 in. |
| May | 47.3 °F | 66.5 °F | 2.85 in. |
| June | 57.2 °F | 75.9 °F | 3.37 in. |
| July | 62.4 °F | 80.1 °F | 3.46 in. |
| August | 61.1 °F | 79.0 °F | 3.2 in. |
| September | 54.3 °F | 72.4 °F | 3.21 in. |
| October | 43.5 °F | 60.4 °F | 3.4 in. |
| November | 33.6 °F | 48.7 °F | 2.67 in. |
| December | 25.0 °F | 38.0 °F | 2.64 in. |
| Annual | 40.3 °F | 57.1 °F | 34.53 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°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 |