Whitesboro, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38 °F (low) to 57.6 °F (high). Annual precipitation averages 47.1 Inches. Whitesboro 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 | 14.0 °F | 30.5 °F | 3.25 in. |
| February | 14.7 °F | 33.2 °F | 2.87 in. |
| March | 23.2 °F | 41.4 °F | 3.43 in. |
| April | 34.9 °F | 56.6 °F | 3.92 in. |
| May | 46.3 °F | 69.9 °F | 3.94 in. |
| June | 55.9 °F | 78.1 °F | 4.83 in. |
| July | 60.7 °F | 82.7 °F | 4.25 in. |
| August | 59.2 °F | 80.9 °F | 3.99 in. |
| September | 52.1 °F | 73.8 °F | 3.99 in. |
| October | 41.3 °F | 60.4 °F | 4.78 in. |
| November | 31.6 °F | 47.5 °F | 3.98 in. |
| December | 21.9 °F | 36.1 °F | 3.9 in. |
| Annual | 38 °F | 57.6 °F | 47.13 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 |