Peru, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.3 °F (low) to 55.1 °F (high). Annual precipitation averages 32.5 Inches. Peru is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.5 °F | 27.3 °F | 1.84 in. |
| February | 11.3 °F | 30.3 °F | 1.66 in. |
| March | 21.0 °F | 39.3 °F | 2.14 in. |
| April | 34.0 °F | 53.5 °F | 2.64 in. |
| May | 46.0 °F | 67.1 °F | 2.81 in. |
| June | 55.5 °F | 75.7 °F | 4.05 in. |
| July | 60.6 °F | 80.5 °F | 3.27 in. |
| August | 58.8 °F | 78.9 °F | 3.15 in. |
| September | 51.0 °F | 71.6 °F | 2.7 in. |
| October | 39.8 °F | 57.8 °F | 3.39 in. |
| November | 29.5 °F | 45.3 °F | 2.56 in. |
| December | 18.4 °F | 33.8 °F | 2.25 in. |
| Annual | 36.3 °F | 55.1 °F | 32.46 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |