Murrysville, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.5 °C (low) to 16.9 °C (high). Annual precipitation averages 1092.2 Millimeters. Murrysville 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 | -5.9 °C | 3.2 °C | 83.31 mm |
| February | -5.4 °C | 4.7 °C | 65.79 mm |
| March | -1.6 °C | 9.7 °C | 85.09 mm |
| April | 4 °C | 17.3 °C | 90.17 mm |
| May | 9.9 °C | 22.8 °C | 101.85 mm |
| June | 14.8 °C | 27.2 °C | 112.78 mm |
| July | 17.2 °C | 29.3 °C | 116.84 mm |
| August | 16.3 °C | 28.6 °C | 100.08 mm |
| September | 12.4 °C | 24.9 °C | 92.46 mm |
| October | 6.1 °C | 18.1 °C | 81.53 mm |
| November | 0.7 °C | 11.2 °C | 79.5 mm |
| December | -3 °C | 5.5 °C | 82.8 mm |
| Annual | 5.5 °C | 16.9 °C | 1092.2 mm |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |