Bigler, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.1 °C (low) to 14.2 °C (high). Annual precipitation averages 1124 Millimeters. Bigler is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.6 °C | 0.2 °C | 81.53 mm |
| February | -8 °C | 1.9 °C | 65.53 mm |
| March | -4.1 °C | 6.8 °C | 88.14 mm |
| April | 1.9 °C | 14.4 °C | 97.79 mm |
| May | 7.8 °C | 20.4 °C | 103.89 mm |
| June | 12.3 °C | 24.4 °C | 115.82 mm |
| July | 14.6 °C | 26.7 °C | 103.38 mm |
| August | 13.8 °C | 25.9 °C | 100.08 mm |
| September | 9.9 °C | 22.2 °C | 106.17 mm |
| October | 4.1 °C | 15.5 °C | 94.23 mm |
| November | -1.2 °C | 8.9 °C | 81.28 mm |
| December | -5.3 °C | 2.6 °C | 86.11 mm |
| Annual | 3.1 °C | 14.2 °C | 1123.95 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |