Greensboro, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.5 °C (low) to 17.4 °C (high). Annual precipitation averages 1106.7 Millimeters. Greensboro 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 | -5.8 °C | 3.7 °C | 81.28 mm |
| February | -5 °C | 5.4 °C | 72.9 mm |
| March | -1.4 °C | 10.7 °C | 88.9 mm |
| April | 4 °C | 18.2 °C | 97.54 mm |
| May | 9.8 °C | 23.4 °C | 106.43 mm |
| June | 14.7 °C | 27.4 °C | 109.47 mm |
| July | 17.1 °C | 29.4 °C | 117.09 mm |
| August | 16.4 °C | 28.9 °C | 94.74 mm |
| September | 12.4 °C | 25.4 °C | 91.69 mm |
| October | 6 °C | 18.5 °C | 80.77 mm |
| November | 0.6 °C | 11.6 °C | 81.03 mm |
| December | -3.1 °C | 5.8 °C | 84.84 mm |
| Annual | 5.5 °C | 17.4 °C | 1106.68 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 |