Port Matilda, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.8 °C (low) to 15.4 °C (high). Annual precipitation averages 1100.9 Millimeters. Port Matilda 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 | -7.7 °C | 1.6 °C | 76.45 mm |
| February | -7.2 °C | 3.2 °C | 65.28 mm |
| March | -3.3 °C | 8.2 °C | 87.38 mm |
| April | 2.5 °C | 15.7 °C | 93.47 mm |
| May | 8.2 °C | 21.4 °C | 103.89 mm |
| June | 13.3 °C | 25.7 °C | 106.17 mm |
| July | 15.6 °C | 28.1 °C | 98.3 mm |
| August | 14.6 °C | 27.1 °C | 100.08 mm |
| September | 10.5 °C | 23.3 °C | 111 mm |
| October | 4.4 °C | 16.7 °C | 97.54 mm |
| November | -0.7 °C | 10.1 °C | 78.23 mm |
| December | -4.6 °C | 4 °C | 83.06 mm |
| Annual | 3.8 °C | 15.4 °C | 1100.85 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |