Prattsburgh, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.5 °F (low) to 55.2 °F (high). Annual precipitation averages 39 Inches. Prattsburgh is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.9 °F | 29.8 °F | 2.48 in. |
| February | 13.5 °F | 32.1 °F | 1.76 in. |
| March | 20.2 °F | 40.0 °F | 2.68 in. |
| April | 30.7 °F | 53.8 °F | 3.12 in. |
| May | 41.9 °F | 66.4 °F | 3.69 in. |
| June | 51.4 °F | 74.5 °F | 4.24 in. |
| July | 56.0 °F | 78.7 °F | 4.12 in. |
| August | 54.6 °F | 77.2 °F | 3.61 in. |
| September | 47.8 °F | 70.9 °F | 3.87 in. |
| October | 37.6 °F | 58.4 °F | 4.01 in. |
| November | 28.1 °F | 45.3 °F | 2.81 in. |
| December | 19.7 °F | 35.0 °F | 2.58 in. |
| Annual | 34.5 °F | 55.2 °F | 38.97 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |