Birdsboro, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.9 °C (low) to 17.6 °C (high). Annual precipitation averages 1220.7 Millimeters. Birdsboro is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 4.1 °C | 86.61 mm |
| February | -4.2 °C | 5.6 °C | 70.61 mm |
| March | -0.1 °C | 10.4 °C | 100.84 mm |
| April | 5.6 °C | 17.6 °C | 94.23 mm |
| May | 11.1 °C | 22.8 °C | 96.27 mm |
| June | 16.3 °C | 27.7 °C | 119.13 mm |
| July | 19.1 °C | 30.1 °C | 121.92 mm |
| August | 18.2 °C | 29.2 °C | 109.47 mm |
| September | 14 °C | 25.7 °C | 126.49 mm |
| October | 7.7 °C | 18.9 °C | 109.47 mm |
| November | 1.8 °C | 12.6 °C | 85.34 mm |
| December | -2 °C | 6.8 °C | 100.33 mm |
| Annual | 6.9 °C | 17.6 °C | 1220.71 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |