Emporium, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.7 °C (low) to 15.2 °C (high). Annual precipitation averages 1122.7 Millimeters. Emporium 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 | -8.8 °C | 0.9 °C | 78.23 mm |
| February | -8.6 °C | 2.7 °C | 58.17 mm |
| March | -4.4 °C | 7.8 °C | 81.28 mm |
| April | 1 °C | 15.3 °C | 97.54 mm |
| May | 6.8 °C | 21.7 °C | 102.87 mm |
| June | 12 °C | 25.7 °C | 109.98 mm |
| July | 14.4 °C | 27.8 °C | 108.46 mm |
| August | 13.8 °C | 27.1 °C | 112.78 mm |
| September | 9.9 °C | 23.4 °C | 103.12 mm |
| October | 3.5 °C | 16.6 °C | 98.04 mm |
| November | -1.7 °C | 9.5 °C | 87.12 mm |
| December | -5.4 °C | 3.3 °C | 85.09 mm |
| Annual | 2.7 °C | 15.2 °C | 1122.68 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |