Bremen, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.6 °F (low) to 59.4 °F (high). Annual precipitation averages 39.7 Inches. Bremen 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 | 17.3 °F | 31.8 °F | 2.58 in. |
| February | 19.6 °F | 35.6 °F | 2.26 in. |
| March | 28.1 °F | 46.8 °F | 2.34 in. |
| April | 38.5 °F | 59.6 °F | 3.59 in. |
| May | 49.7 °F | 70.7 °F | 4.38 in. |
| June | 59.4 °F | 79.9 °F | 4.23 in. |
| July | 62.8 °F | 83.1 °F | 4.37 in. |
| August | 60.9 °F | 81.2 °F | 4.05 in. |
| September | 53.4 °F | 75.5 °F | 3.3 in. |
| October | 42.4 °F | 62.9 °F | 3.31 in. |
| November | 32.2 °F | 48.6 °F | 2.87 in. |
| December | 23.2 °F | 36.8 °F | 2.45 in. |
| Annual | 40.6 °F | 59.4 °F | 39.73 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |