Shelburn, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.7 °C (low) to 18 °C (high). Annual precipitation averages 1145.8 Millimeters. Shelburn 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6 °C | 2.9 °C | 83.31 mm |
| February | -4.4 °C | 5.7 °C | 62.99 mm |
| March | 0.7 °C | 11.8 °C | 87.12 mm |
| April | 6.6 °C | 18.7 °C | 127.51 mm |
| May | 12.3 °C | 24.1 °C | 120.4 mm |
| June | 17.1 °C | 28.6 °C | 122.17 mm |
| July | 18.7 °C | 30.2 °C | 111.76 mm |
| August | 17.6 °C | 29.7 °C | 77.72 mm |
| September | 13.3 °C | 26.6 °C | 88.39 mm |
| October | 6.9 °C | 19.9 °C | 92.46 mm |
| November | 1.2 °C | 12.1 °C | 93.22 mm |
| December | -3.3 °C | 5.6 °C | 78.74 mm |
| Annual | 6.7 °C | 18 °C | 1145.79 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 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 |