Ligonier, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 15.1 °C (high). Annual precipitation averages 969 Millimeters. Ligonier 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 | -8.1 °C | -0.2 °C | 61.47 mm |
| February | -7 °C | 1.8 °C | 53.09 mm |
| March | -2.4 °C | 8.1 °C | 56.39 mm |
| April | 3.5 °C | 15.3 °C | 91.44 mm |
| May | 9.9 °C | 21.4 °C | 110.24 mm |
| June | 15.2 °C | 26.5 °C | 109.98 mm |
| July | 16.9 °C | 28.3 °C | 95.76 mm |
| August | 15.9 °C | 27.2 °C | 100.84 mm |
| September | 11.8 °C | 24.1 °C | 78.49 mm |
| October | 5.7 °C | 17 °C | 81.03 mm |
| November | 0.1 °C | 9.2 °C | 73.66 mm |
| December | -4.8 °C | 2.5 °C | 56.64 mm |
| Annual | 4.7 °C | 15.1 °C | 969.03 mm |
| 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 : -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 |