Auburn, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.4 °C (low) to 14.9 °C (high). Annual precipitation averages 1255.8 Millimeters. Auburn is located in USDA Plant Hardiness Zone 6a. 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 | -9.2 °C | 1.3 °C | 96.27 mm |
| February | -8.5 °C | 2.8 °C | 83.06 mm |
| March | -4.1 °C | 7.1 °C | 115.57 mm |
| April | 1.7 °C | 14.1 °C | 110.49 mm |
| May | 7.7 °C | 20.1 °C | 91.95 mm |
| June | 12.9 °C | 24.7 °C | 108.2 mm |
| July | 16.1 °C | 27.6 °C | 99.06 mm |
| August | 15.2 °C | 26.8 °C | 106.17 mm |
| September | 10.7 °C | 22.9 °C | 104.65 mm |
| October | 4.4 °C | 16.3 °C | 128.02 mm |
| November | -0.8 °C | 10.2 °C | 96.27 mm |
| December | -5.6 °C | 4.4 °C | 116.08 mm |
| Annual | 3.4 °C | 14.9 °C | 1255.79 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°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 |