Prospect Park, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.6 °C (low) to 15 °C (high). Annual precipitation averages 1121.7 Millimeters. Prospect Park 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.6 °C | 5.1 °C | 88.9 mm |
| February | -1.8 °C | 6.5 °C | 71.88 mm |
| March | 1.8 °C | 11 °C | 109.22 mm |
| April | 7.6 °C | 17.7 °C | 90.68 mm |
| May | 12.9 °C | 22.9 °C | 94.23 mm |
| June | 18.2 °C | 28.1 °C | 108.71 mm |
| July | 21.3 °C | 30.6 °C | 115.06 mm |
| August | 20.4 °C | 29.4 °C | 116.08 mm |
| September | 16.8 °C | 25.9 °C | 106.68 mm |
| October | 10.3 °C | 19.3 °C | 96.27 mm |
| November | 4.6 °C | 13.1 °C | 76.2 mm |
| December | 0.4 °C | 7.7 °C | 104.39 mm |
| Annual | 9.2 °C | 18.1 °C | 1178.3 mm |
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9 °C | 0.7 °C | 78.23 mm |
| February | -8.7 °C | 2.5 °C | 58.17 mm |
| March | -4.6 °C | 7.6 °C | 81.28 mm |
| April | 0.8 °C | 15.1 °C | 97.54 mm |
| May | 6.7 °C | 21.6 °C | 102.87 mm |
| June | 11.8 °C | 25.5 °C | 109.98 mm |
| July | 14.2 °C | 27.6 °C | 108.2 mm |
| August | 13.6 °C | 26.9 °C | 112.52 mm |
| September | 9.8 °C | 23.3 °C | 103.12 mm |
| October | 3.4 °C | 16.4 °C | 98.04 mm |
| November | -1.6 °C | 9.3 °C | 86.87 mm |
| December | -5.4 °C | 3.2 °C | 84.84 mm |
| Annual | 2.6 °C | 15 °C | 1121.66 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |