Dune Acres, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.2 °C (low) to 15 °C (high). Annual precipitation averages 1005.6 Millimeters. Dune Acres is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.3 °C | 0.3 °C | 59.69 mm |
| February | -5.8 °C | 2.2 °C | 54.36 mm |
| March | -1.1 °C | 7.9 °C | 57.4 mm |
| April | 4.3 °C | 14.3 °C | 90.42 mm |
| May | 10.1 °C | 20.5 °C | 105.41 mm |
| June | 15.8 °C | 25.5 °C | 111.76 mm |
| July | 19.1 °C | 27.8 °C | 104.65 mm |
| August | 18.6 °C | 27.1 °C | 101.6 mm |
| September | 14.6 °C | 23.9 °C | 92.96 mm |
| October | 8 °C | 17.3 °C | 99.57 mm |
| November | 2.1 °C | 9.8 °C | 70.61 mm |
| December | -3.8 °C | 3.2 °C | 57.15 mm |
| Annual | 6.2 °C | 15 °C | 1005.58 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |