Hopwood, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.3 °C (low) to 17 °C (high). Annual precipitation averages 1152.4 Millimeters. Hopwood 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 3.6 °C | 87.12 mm |
| February | -5.1 °C | 5.3 °C | 74.17 mm |
| March | -1.4 °C | 10.3 °C | 96.27 mm |
| April | 4.1 °C | 17.6 °C | 97.03 mm |
| May | 9.8 °C | 22.7 °C | 112.78 mm |
| June | 14.5 °C | 26.7 °C | 123.19 mm |
| July | 16.8 °C | 28.7 °C | 120.4 mm |
| August | 16.1 °C | 28.2 °C | 97.28 mm |
| September | 12.1 °C | 24.7 °C | 91.19 mm |
| October | 5.8 °C | 18.2 °C | 81.28 mm |
| November | 0.4 °C | 11.6 °C | 83.82 mm |
| December | -3.1 °C | 5.9 °C | 87.88 mm |
| Annual | 5.3 °C | 17 °C | 1152.41 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |