Baileyville, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.2 °C (low) to 15.2 °C (high). Annual precipitation averages 1094.7 Millimeters. Baileyville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.3 °C | 1.4 °C | 76.2 mm |
| February | -6.8 °C | 3.1 °C | 64.26 mm |
| March | -3 °C | 8 °C | 87.38 mm |
| April | 2.9 °C | 15.4 °C | 93.73 mm |
| May | 8.8 °C | 21.1 °C | 103.38 mm |
| June | 13.7 °C | 25.4 °C | 105.41 mm |
| July | 15.9 °C | 27.8 °C | 98.3 mm |
| August | 15.1 °C | 26.9 °C | 100.58 mm |
| September | 10.9 °C | 23.1 °C | 108.71 mm |
| October | 4.9 °C | 16.5 °C | 96.01 mm |
| November | -0.3 °C | 10 °C | 77.72 mm |
| December | -4.3 °C | 3.9 °C | 83.06 mm |
| Annual | 4.2 °C | 15.2 °C | 1094.74 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Dfb - Humid Continental Mild Summer, Wet All Year |