West Waynesburg, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.6 °C (low) to 16.9 °C (high). Annual precipitation averages 1095.5 Millimeters. West Waynesburg 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.7 °C | 3.3 °C | 85.6 mm |
| February | -5.9 °C | 5 °C | 72.39 mm |
| March | -2 °C | 10.3 °C | 91.19 mm |
| April | 3.2 °C | 17.7 °C | 86.87 mm |
| May | 8.9 °C | 22.6 °C | 113.03 mm |
| June | 13.9 °C | 26.6 °C | 112.52 mm |
| July | 16.2 °C | 28.7 °C | 107.7 mm |
| August | 15.2 °C | 28.1 °C | 95.25 mm |
| September | 11.4 °C | 24.8 °C | 91.95 mm |
| October | 4.9 °C | 18.3 °C | 81.79 mm |
| November | -0.1 °C | 11.4 °C | 73.41 mm |
| December | -3.9 °C | 5.7 °C | 83.82 mm |
| Annual | 4.6 °C | 16.9 °C | 1095.52 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |