Coaldale, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.4 °C (low) to 15.3 °C (high). Annual precipitation averages 1386.6 Millimeters. Coaldale is located in USDA Plant Hardiness Zone 6b. 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 | -6.6 °C | 2.1 °C | 76.2 mm |
| February | -5.8 °C | 3.8 °C | 61.21 mm |
| March | -2.1 °C | 8.6 °C | 93.22 mm |
| April | 3.8 °C | 16 °C | 93.98 mm |
| May | 9.4 °C | 21.4 °C | 104.65 mm |
| June | 14.3 °C | 25.9 °C | 101.6 mm |
| July | 16.6 °C | 28.3 °C | 104.9 mm |
| August | 15.6 °C | 27.4 °C | 89.92 mm |
| September | 11.8 °C | 23.7 °C | 104.9 mm |
| October | 5.7 °C | 17.2 °C | 86.11 mm |
| November | 0.3 °C | 10.4 °C | 82.55 mm |
| December | -3.7 °C | 4.4 °C | 82.55 mm |
| Annual | 4.9 °C | 15.8 °C | 1081.79 mm |
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.4 °C | 1.6 °C | 99.06 mm |
| February | -7.7 °C | 3.2 °C | 78.49 mm |
| March | -3.6 °C | 7.8 °C | 106.93 mm |
| April | 2.2 °C | 15.3 °C | 115.06 mm |
| May | 7.8 °C | 21.2 °C | 113.03 mm |
| June | 12.8 °C | 25.4 °C | 142.75 mm |
| July | 15.3 °C | 27.9 °C | 126.24 mm |
| August | 14.3 °C | 27 °C | 121.67 mm |
| September | 10.4 °C | 23.3 °C | 136.91 mm |
| October | 4.1 °C | 16.8 °C | 131.06 mm |
| November | -0.9 °C | 10.1 °C | 103.38 mm |
| December | -5.1 °C | 4.2 °C | 112.01 mm |
| Annual | 3.4 °C | 15.3 °C | 1386.59 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | 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 | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |