Boalsburg, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.1 °C (low) to 15.2 °C (high). Annual precipitation averages 1061.7 Millimeters. Boalsburg 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 | -7.5 °C | 1.4 °C | 70.61 mm |
| February | -7 °C | 3.1 °C | 58.67 mm |
| March | -3.1 °C | 7.9 °C | 85.09 mm |
| April | 2.8 °C | 15.5 °C | 91.19 mm |
| May | 8.6 °C | 21.3 °C | 99.57 mm |
| June | 13.6 °C | 25.6 °C | 102.11 mm |
| July | 15.8 °C | 27.9 °C | 100.08 mm |
| August | 14.9 °C | 26.9 °C | 103.89 mm |
| September | 10.8 °C | 23.1 °C | 105.41 mm |
| October | 4.8 °C | 16.5 °C | 93.73 mm |
| November | -0.4 °C | 9.9 °C | 71.37 mm |
| December | -4.4 °C | 3.8 °C | 80.01 mm |
| Annual | 4.1 °C | 15.2 °C | 1061.73 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |