Bloomingdale, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 5.4 °C (low) to 16.3 °C (high). Annual precipitation averages 1061.5 Millimeters. Bloomingdale is located in USDA Plant Hardiness Zone 6b. 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 | -6.3 °C | 2.6 °C | 82.55 mm |
| February | -5.6 °C | 4.3 °C | 61.47 mm |
| March | -1.4 °C | 9.7 °C | 84.07 mm |
| April | 4.5 °C | 16.8 °C | 93.98 mm |
| May | 9.9 °C | 22 °C | 103.63 mm |
| June | 14.8 °C | 26.2 °C | 115.82 mm |
| July | 16.8 °C | 28.2 °C | 104.9 mm |
| August | 15.8 °C | 27.8 °C | 95.25 mm |
| September | 12.2 °C | 24.4 °C | 91.44 mm |
| October | 6.1 °C | 17.7 °C | 76.71 mm |
| November | 0.9 °C | 11.1 °C | 73.91 mm |
| December | -3.4 °C | 5.1 °C | 77.72 mm |
| Annual | 5.4 °C | 16.3 °C | 1061.45 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 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |