Bear Rocks, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.8 °C (low) to 14.6 °C (high). Annual precipitation averages 1241 Millimeters. Bear Rocks 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.5 °C | 1.2 °C | 97.54 mm |
| February | -7 °C | 2.9 °C | 90.68 mm |
| March | -3.2 °C | 7.7 °C | 104.9 mm |
| April | 2.5 °C | 14.9 °C | 104.39 mm |
| May | 8.1 °C | 20.2 °C | 114.81 mm |
| June | 12.8 °C | 24.3 °C | 127.25 mm |
| July | 15.3 °C | 26.4 °C | 118.11 mm |
| August | 14.3 °C | 25.9 °C | 105.66 mm |
| September | 10.6 °C | 22.5 °C | 97.28 mm |
| October | 4.6 °C | 16.1 °C | 91.69 mm |
| November | -0.6 °C | 9.2 °C | 91.44 mm |
| December | -4.8 °C | 3.6 °C | 97.28 mm |
| Annual | 3.8 °C | 14.6 °C | 1241.03 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |