Hagaman, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.4 °F (low) to 56.1 °F (high). Annual precipitation averages 46 Inches. Hagaman 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 | 12.3 °F | 29.5 °F | 3.53 in. |
| February | 13.6 °F | 32.4 °F | 2.76 in. |
| March | 21.7 °F | 40.9 °F | 3.46 in. |
| April | 33.7 °F | 55.6 °F | 3.72 in. |
| May | 45.4 °F | 67.8 °F | 4.04 in. |
| June | 54.3 °F | 75.9 °F | 4.65 in. |
| July | 59.6 °F | 80.5 °F | 4.43 in. |
| August | 57.7 °F | 78.9 °F | 4.06 in. |
| September | 50.5 °F | 71.8 °F | 4.06 in. |
| October | 39.1 °F | 59.3 °F | 4.26 in. |
| November | 28.8 °F | 46.0 °F | 3.41 in. |
| December | 19.8 °F | 34.9 °F | 3.66 in. |
| Annual | 36.4 °F | 56.1 °F | 46.04 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 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |