Homer City, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 16.3 °C (high). Annual precipitation averages 1189 Millimeters. Homer City is located in USDA Plant Hardiness Zone 6b. 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 | -6.7 °C | 2.7 °C | 93.98 mm |
| February | -6.1 °C | 4.3 °C | 71.37 mm |
| March | -2.2 °C | 9.3 °C | 92.2 mm |
| April | 3.3 °C | 16.7 °C | 100.08 mm |
| May | 9.2 °C | 22.2 °C | 108.2 mm |
| June | 13.9 °C | 26.4 °C | 119.63 mm |
| July | 16.2 °C | 28.4 °C | 127 mm |
| August | 15.3 °C | 27.8 °C | 105.92 mm |
| September | 11.7 °C | 24.3 °C | 104.9 mm |
| October | 5.3 °C | 17.8 °C | 85.85 mm |
| November | 0.1 °C | 11 °C | 90.17 mm |
| December | -3.6 °C | 5 °C | 89.66 mm |
| Annual | 4.7 °C | 16.3 °C | 1188.96 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 6b : -20.6°C to -17.8°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 |