Stockwell, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.5 °C (low) to 16.5 °C (high). Annual precipitation averages 1039.9 Millimeters. Stockwell 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 | -7.6 °C | 1.2 °C | 67.31 mm |
| February | -6.1 °C | 3.5 °C | 54.86 mm |
| March | -1.1 °C | 9.8 °C | 73.15 mm |
| April | 4.8 °C | 17 °C | 102.11 mm |
| May | 11.1 °C | 22.9 °C | 112.78 mm |
| June | 16.1 °C | 27.6 °C | 125.22 mm |
| July | 17.7 °C | 28.9 °C | 112.01 mm |
| August | 16.4 °C | 28.3 °C | 88.14 mm |
| September | 12.4 °C | 25.7 °C | 76.45 mm |
| October | 6.2 °C | 18.8 °C | 78.49 mm |
| November | 0.5 °C | 10.6 °C | 83.31 mm |
| December | -4.4 °C | 3.9 °C | 66.04 mm |
| Annual | 5.5 °C | 16.5 °C | 1039.87 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |