Bloomingdale, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.7 °F (low) to 61.4 °F (high). Annual precipitation averages 41.8 Inches. 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 | 20.7 °F | 36.7 °F | 3.25 in. |
| February | 22.0 °F | 39.8 °F | 2.42 in. |
| March | 29.5 °F | 49.4 °F | 3.31 in. |
| April | 40.1 °F | 62.3 °F | 3.7 in. |
| May | 49.9 °F | 71.6 °F | 4.08 in. |
| June | 58.7 °F | 79.1 °F | 4.56 in. |
| July | 62.3 °F | 82.7 °F | 4.13 in. |
| August | 60.5 °F | 82.0 °F | 3.75 in. |
| September | 54.0 °F | 76.0 °F | 3.6 in. |
| October | 42.9 °F | 63.9 °F | 3.02 in. |
| November | 33.6 °F | 51.9 °F | 2.91 in. |
| December | 25.8 °F | 41.1 °F | 3.06 in. |
| Annual | 41.7 °F | 61.4 °F | 41.79 in. |
| 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 : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |