Trail Creek, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.3 °C (low) to 14.7 °C (high). Annual precipitation averages 968.3 Millimeters. Trail Creek 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.6 °C | 0.1 °C | 63.5 mm |
| February | -6.3 °C | 2.2 °C | 49.78 mm |
| March | -1.7 °C | 7.7 °C | 59.18 mm |
| April | 3.7 °C | 14.1 °C | 87.38 mm |
| May | 9.4 °C | 20.3 °C | 86.11 mm |
| June | 14.9 °C | 25.2 °C | 107.95 mm |
| July | 17.7 °C | 27.6 °C | 102.11 mm |
| August | 16.9 °C | 26.6 °C | 106.43 mm |
| September | 12.9 °C | 23.5 °C | 84.84 mm |
| October | 6.7 °C | 16.9 °C | 95 mm |
| November | 1.1 °C | 9.6 °C | 67.56 mm |
| December | -4.2 °C | 3.1 °C | 58.42 mm |
| Annual | 5.3 °C | 14.7 °C | 968.26 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |