Chase, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.4 °C (low) to 14.8 °C (high). Annual precipitation averages 1198.6 Millimeters. Chase 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 | -8.7 °C | 0.8 °C | 87.88 mm |
| February | -7.9 °C | 2.3 °C | 64.52 mm |
| March | -3.8 °C | 6.9 °C | 83.57 mm |
| April | 2.2 °C | 14.6 °C | 104.14 mm |
| May | 7.9 °C | 20.9 °C | 100.08 mm |
| June | 12.9 °C | 25.3 °C | 127 mm |
| July | 15.2 °C | 27.9 °C | 113.79 mm |
| August | 14.3 °C | 26.8 °C | 110.49 mm |
| September | 10.5 °C | 23.1 °C | 120.65 mm |
| October | 4.4 °C | 16.2 °C | 115.82 mm |
| November | -0.6 °C | 9.6 °C | 79.5 mm |
| December | -5.1 °C | 3.7 °C | 91.19 mm |
| Annual | 3.4 °C | 14.8 °C | 1198.63 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |