Oriskany, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.8 °F (low) to 57 °F (high). Annual precipitation averages 47.4 Inches. Oriskany is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.6 °F | 30.2 °F | 3.35 in. |
| February | 14.3 °F | 32.6 °F | 2.94 in. |
| March | 22.9 °F | 41.0 °F | 3.37 in. |
| April | 34.7 °F | 55.8 °F | 3.95 in. |
| May | 46.0 °F | 69.0 °F | 3.93 in. |
| June | 55.7 °F | 77.2 °F | 4.87 in. |
| July | 60.5 °F | 81.8 °F | 4.1 in. |
| August | 59.0 °F | 80.1 °F | 3.95 in. |
| September | 51.9 °F | 73.1 °F | 4.01 in. |
| October | 41.1 °F | 59.8 °F | 4.96 in. |
| November | 31.5 °F | 47.5 °F | 3.98 in. |
| December | 21.8 °F | 36.0 °F | 3.99 in. |
| Annual | 37.8 °F | 57 °F | 47.4 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 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 |