Roseland, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.9 °C (low) to 15.1 °C (high). Annual precipitation averages 1024.4 Millimeters. Roseland 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.8 °C | -0.1 °C | 70.61 mm |
| February | -6.7 °C | 1.8 °C | 60.71 mm |
| March | -2.2 °C | 7.9 °C | 60.45 mm |
| April | 3.6 °C | 15.1 °C | 88.14 mm |
| May | 9.7 °C | 21.3 °C | 106.43 mm |
| June | 14.9 °C | 26.5 °C | 106.17 mm |
| July | 17.1 °C | 28.5 °C | 103.89 mm |
| August | 16.3 °C | 27.5 °C | 103.12 mm |
| September | 12.2 °C | 24.2 °C | 90.93 mm |
| October | 6.1 °C | 17.1 °C | 97.54 mm |
| November | 0.3 °C | 9.1 °C | 73.41 mm |
| December | -4.4 °C | 2.8 °C | 62.99 mm |
| Annual | 4.9 °C | 15.1 °C | 1024.39 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |