Auburn, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.1 °F (low) to 60.1 °F (high). Annual precipitation averages 38.5 Inches. Auburn is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.6 °F | 32.4 °F | 2.41 in. |
| February | 19.3 °F | 36.1 °F | 2.07 in. |
| March | 27.5 °F | 47.0 °F | 2.47 in. |
| April | 37.6 °F | 60.5 °F | 3.68 in. |
| May | 49.1 °F | 71.7 °F | 4.54 in. |
| June | 58.9 °F | 80.5 °F | 4.05 in. |
| July | 62.0 °F | 84.1 °F | 3.79 in. |
| August | 60.0 °F | 82.0 °F | 3.89 in. |
| September | 52.6 °F | 76.4 °F | 3.19 in. |
| October | 41.9 °F | 63.8 °F | 2.97 in. |
| November | 31.9 °F | 49.1 °F | 2.96 in. |
| December | 23.2 °F | 37.2 °F | 2.44 in. |
| Annual | 40.1 °F | 60.1 °F | 38.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |