Bloomingdale, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.9 °C (low) to 17.4 °C (high). Annual precipitation averages 1132.6 Millimeters. Bloomingdale 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.9 °C | 1.9 °C | 75.95 mm |
| February | -5.3 °C | 4.7 °C | 65.53 mm |
| March | -0.2 °C | 10.8 °C | 84.33 mm |
| April | 5.4 °C | 18.2 °C | 118.36 mm |
| May | 11.4 °C | 23.9 °C | 124.21 mm |
| June | 16.4 °C | 28.6 °C | 129.03 mm |
| July | 18.1 °C | 30 °C | 107.7 mm |
| August | 16.8 °C | 29.3 °C | 88.9 mm |
| September | 12.5 °C | 26.3 °C | 79.5 mm |
| October | 6.3 °C | 19.6 °C | 92.2 mm |
| November | 0.7 °C | 11.2 °C | 91.95 mm |
| December | -4.2 °C | 4.5 °C | 74.93 mm |
| Annual | 5.9 °C | 17.4 °C | 1132.59 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |