Auburn, Massachusetts has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.1 °F (low) to 58.7 °F (high). Annual precipitation averages 49.4 Inches. 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 | 15.5 °F | 34.4 °F | 3.79 in. |
| February | 16.7 °F | 37.0 °F | 3.27 in. |
| March | 24.7 °F | 44.7 °F | 4.55 in. |
| April | 35.1 °F | 57.4 °F | 4.35 in. |
| May | 45.9 °F | 68.2 °F | 3.62 in. |
| June | 55.2 °F | 76.4 °F | 4.26 in. |
| July | 61.0 °F | 81.7 °F | 3.9 in. |
| August | 59.3 °F | 80.2 °F | 4.18 in. |
| September | 51.3 °F | 73.3 °F | 4.12 in. |
| October | 40.0 °F | 61.3 °F | 5.04 in. |
| November | 30.5 °F | 50.3 °F | 3.79 in. |
| December | 22.0 °F | 39.9 °F | 4.57 in. |
| Annual | 38.1 °F | 58.7 °F | 49.44 in. |
| 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 : -10°F to -5°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 |