Buchanan, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.4 °F (low) to 62.3 °F (high). Annual precipitation averages 48.1 Inches. Buchanan is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.5 °F | 37.9 °F | 3.62 in. |
| February | 23.4 °F | 40.6 °F | 2.61 in. |
| March | 30.5 °F | 48.8 °F | 3.97 in. |
| April | 40.8 °F | 61.3 °F | 3.82 in. |
| May | 50.5 °F | 71.5 °F | 3.44 in. |
| June | 59.8 °F | 80.5 °F | 4.44 in. |
| July | 65.4 °F | 85.4 °F | 4.43 in. |
| August | 63.8 °F | 83.7 °F | 4.82 in. |
| September | 56.4 °F | 76.9 °F | 4.4 in. |
| October | 45.2 °F | 64.7 °F | 4.56 in. |
| November | 35.3 °F | 53.6 °F | 3.98 in. |
| December | 27.9 °F | 42.8 °F | 4.03 in. |
| Annual | 43.4 °F | 62.3 °F | 48.12 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |