Alfred, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.5 °C (low) to 13.3 °C (high). Annual precipitation averages 971.6 Millimeters. Alfred is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.1 °C | -0.6 °C | 63.25 mm |
| February | -9.7 °C | 0.7 °C | 44.2 mm |
| March | -6 °C | 5.3 °C | 66.04 mm |
| April | -0.1 °C | 12.7 °C | 80.26 mm |
| May | 5.8 °C | 19.7 °C | 89.66 mm |
| June | 10.6 °C | 24.1 °C | 102.87 mm |
| July | 12.9 °C | 26.3 °C | 96.27 mm |
| August | 12.2 °C | 25.4 °C | 93.47 mm |
| September | 8.4 °C | 21.7 °C | 94.49 mm |
| October | 2.8 °C | 14.8 °C | 94.23 mm |
| November | -1.9 °C | 7.8 °C | 77.22 mm |
| December | -6.4 °C | 1.8 °C | 69.6 mm |
| Annual | 1.5 °C | 13.3 °C | 971.56 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |