Bloomfield, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.5 °C (low) to 18 °C (high). Annual precipitation averages 1211.3 Millimeters. Bloomfield is located in USDA Plant Hardiness Zone 6b. 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 | -5.9 °C | 3.3 °C | 86.11 mm |
| February | -4.4 °C | 6 °C | 67.56 mm |
| March | 0.3 °C | 11.8 °C | 90.68 mm |
| April | 6.1 °C | 18.4 °C | 126.49 mm |
| May | 11.9 °C | 23.7 °C | 140.46 mm |
| June | 16.7 °C | 28.3 °C | 128.78 mm |
| July | 18.4 °C | 30 °C | 114.81 mm |
| August | 17.3 °C | 29.8 °C | 81.28 mm |
| September | 13.1 °C | 26.4 °C | 92.46 mm |
| October | 6.7 °C | 20.1 °C | 95 mm |
| November | 1.1 °C | 12.3 °C | 101.09 mm |
| December | -3.3 °C | 5.8 °C | 86.61 mm |
| Annual | 6.5 °C | 18 °C | 1211.33 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 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |