Gilboa, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36 °F (low) to 57.7 °F (high). Annual precipitation averages 39.5 Inches. Gilboa 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.4 °F | 32.5 °F | 2.43 in. |
| February | 14.8 °F | 35.5 °F | 2.05 in. |
| March | 22.0 °F | 42.9 °F | 2.85 in. |
| April | 33.2 °F | 56.7 °F | 3.33 in. |
| May | 44.0 °F | 68.9 °F | 3.53 in. |
| June | 53.1 °F | 76.8 °F | 4.37 in. |
| July | 57.7 °F | 80.9 °F | 4.22 in. |
| August | 56.2 °F | 79.6 °F | 3.93 in. |
| September | 49.0 °F | 72.9 °F | 3.66 in. |
| October | 38.2 °F | 60.4 °F | 3.72 in. |
| November | 29.2 °F | 48.1 °F | 2.66 in. |
| December | 21.3 °F | 37.3 °F | 2.75 in. |
| Annual | 36 °F | 57.7 °F | 39.5 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |