Auburn, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.5 °C (low) to 15.6 °C (high). Annual precipitation averages 976.9 Millimeters. 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 | -8 °C | 0.2 °C | 61.21 mm |
| February | -7.1 °C | 2.3 °C | 52.58 mm |
| March | -2.5 °C | 8.3 °C | 62.74 mm |
| April | 3.1 °C | 15.8 °C | 93.47 mm |
| May | 9.5 °C | 22.1 °C | 115.32 mm |
| June | 14.9 °C | 26.9 °C | 102.87 mm |
| July | 16.7 °C | 28.9 °C | 96.27 mm |
| August | 15.6 °C | 27.8 °C | 98.81 mm |
| September | 11.4 °C | 24.7 °C | 81.03 mm |
| October | 5.5 °C | 17.7 °C | 75.44 mm |
| November | -0.1 °C | 9.5 °C | 75.18 mm |
| December | -4.9 °C | 2.9 °C | 61.98 mm |
| Annual | 4.5 °C | 15.6 °C | 976.9 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |