Gold Key Lake, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.7 °C (low) to 14.1 °C (high). Annual precipitation averages 1278.2 Millimeters. Gold Key Lake is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.7 °C | 0.4 °C | 87.63 mm |
| February | -7.1 °C | 2 °C | 68.07 mm |
| March | -2.9 °C | 6.2 °C | 101.6 mm |
| April | 3.7 °C | 13.6 °C | 105.16 mm |
| May | 9.2 °C | 19.8 °C | 100.08 mm |
| June | 14 °C | 24.3 °C | 129.03 mm |
| July | 16.6 °C | 26.7 °C | 120.4 mm |
| August | 15.8 °C | 25.6 °C | 123.19 mm |
| September | 12.2 °C | 21.9 °C | 128.02 mm |
| October | 6.3 °C | 15.4 °C | 121.67 mm |
| November | 0.1 °C | 9.9 °C | 89.92 mm |
| December | -4.2 °C | 3.2 °C | 103.38 mm |
| Annual | 4.7 °C | 14.1 °C | 1278.15 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |