Alfred, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.2 °C (low) to 14 °C (high). Annual precipitation averages 1283 Millimeters. Alfred 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 | -11.1 °C | -0.2 °C | 91.44 mm |
| February | -10.2 °C | 1.4 °C | 90.68 mm |
| March | -5.2 °C | 5.9 °C | 115.82 mm |
| April | 0.6 °C | 13.1 °C | 111.51 mm |
| May | 6.4 °C | 19.5 °C | 95.76 mm |
| June | 11.9 °C | 24.3 °C | 114.81 mm |
| July | 15.1 °C | 27.4 °C | 102.87 mm |
| August | 14.1 °C | 26.8 °C | 95.5 mm |
| September | 9.8 °C | 22.6 °C | 101.35 mm |
| October | 3.6 °C | 15.6 °C | 132.33 mm |
| November | -1.6 °C | 8.9 °C | 113.54 mm |
| December | -6.9 °C | 2.9 °C | 117.35 mm |
| Annual | 2.2 °C | 14 °C | 1282.96 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |