Hawley, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.5 °C (low) to 14.6 °C (high). Annual precipitation averages 1145.6 Millimeters. Hawley is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.8 °C | 0.6 °C | 83.06 mm |
| February | -9.4 °C | 2.1 °C | 64.52 mm |
| March | -4.9 °C | 7 °C | 84.07 mm |
| April | 0.9 °C | 14.4 °C | 93.73 mm |
| May | 7.1 °C | 20.7 °C | 91.69 mm |
| June | 12.3 °C | 25 °C | 121.67 mm |
| July | 14.8 °C | 27.4 °C | 102.87 mm |
| August | 13.9 °C | 26.5 °C | 107.19 mm |
| September | 9.8 °C | 22.8 °C | 111.25 mm |
| October | 3.3 °C | 16.1 °C | 111 mm |
| November | -1.6 °C | 9.6 °C | 78.49 mm |
| December | -6.1 °C | 3.3 °C | 96.01 mm |
| Annual | 2.5 °C | 14.6 °C | 1145.55 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |