Indian Lake, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.3 °C (low) to 13.3 °C (high). Annual precipitation averages 1037.3 Millimeters. Indian Lake is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.4 °C | 0.2 °C | 72.64 mm |
| February | -6.8 °C | 1.5 °C | 71.63 mm |
| March | -2.9 °C | 6.1 °C | 85.09 mm |
| April | 3.2 °C | 13.5 °C | 82.04 mm |
| May | 8.9 °C | 18.9 °C | 112.78 mm |
| June | 13.6 °C | 23.1 °C | 101.6 mm |
| July | 15.8 °C | 25.2 °C | 97.03 mm |
| August | 15.1 °C | 24.4 °C | 87.38 mm |
| September | 11.4 °C | 21.1 °C | 101.85 mm |
| October | 5.6 °C | 14.7 °C | 80.77 mm |
| November | 0 °C | 8.3 °C | 68.83 mm |
| December | -4.4 °C | 2.6 °C | 75.69 mm |
| Annual | 4.3 °C | 13.3 °C | 1037.33 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |