Chester Heights, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.3 °C (low) to 17.4 °C (high). Annual precipitation averages 1199.4 Millimeters. Chester Heights is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.4 °C | 4.3 °C | 90.17 mm |
| February | -3.8 °C | 5.7 °C | 73.15 mm |
| March | 0.2 °C | 10.3 °C | 109.73 mm |
| April | 5.9 °C | 17.1 °C | 94.49 mm |
| May | 11.3 °C | 22.3 °C | 96.01 mm |
| June | 16.6 °C | 27.2 °C | 114.55 mm |
| July | 19.6 °C | 29.7 °C | 116.59 mm |
| August | 18.7 °C | 28.9 °C | 111 mm |
| September | 14.8 °C | 25.3 °C | 115.06 mm |
| October | 8.2 °C | 18.7 °C | 98.81 mm |
| November | 2.6 °C | 12.3 °C | 77.47 mm |
| December | -1.6 °C | 6.8 °C | 102.36 mm |
| Annual | 7.3 °C | 17.4 °C | 1199.39 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |