Indian Lake, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.8 °F (low) to 55.9 °F (high). Annual precipitation averages 40.8 Inches. 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 | 18.7 °F | 32.3 °F | 2.86 in. |
| February | 19.7 °F | 34.7 °F | 2.82 in. |
| March | 26.7 °F | 42.9 °F | 3.35 in. |
| April | 37.8 °F | 56.3 °F | 3.23 in. |
| May | 48.1 °F | 66.0 °F | 4.44 in. |
| June | 56.4 °F | 73.5 °F | 4.0 in. |
| July | 60.4 °F | 77.3 °F | 3.82 in. |
| August | 59.1 °F | 76.0 °F | 3.44 in. |
| September | 52.5 °F | 69.9 °F | 4.01 in. |
| October | 42.1 °F | 58.5 °F | 3.18 in. |
| November | 32.0 °F | 47.0 °F | 2.71 in. |
| December | 24.1 °F | 36.6 °F | 2.98 in. |
| Annual | 39.8 °F | 55.9 °F | 40.84 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |