Durham, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.2 °F (low) to 57.8 °F (high). Annual precipitation averages 43 Inches. Durham 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.8 °F | 32.9 °F | 2.78 in. |
| February | 15.0 °F | 35.8 °F | 2.44 in. |
| March | 22.3 °F | 43.1 °F | 3.35 in. |
| April | 33.4 °F | 57.2 °F | 3.42 in. |
| May | 44.0 °F | 68.9 °F | 3.62 in. |
| June | 53.0 °F | 76.8 °F | 4.52 in. |
| July | 57.8 °F | 81.1 °F | 3.74 in. |
| August | 56.2 °F | 79.3 °F | 3.83 in. |
| September | 49.2 °F | 72.6 °F | 3.89 in. |
| October | 38.6 °F | 60.2 °F | 5.07 in. |
| November | 29.3 °F | 48.4 °F | 3.02 in. |
| December | 21.3 °F | 37.8 °F | 3.36 in. |
| Annual | 36.2 °F | 57.8 °F | 43.04 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |