Wagner, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 16.3 °C (high). Annual precipitation averages 1092.2 Millimeters. Wagner 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7 °C | 2.1 °C | 76.96 mm |
| February | -6.3 °C | 3.9 °C | 59.69 mm |
| March | -2.4 °C | 9 °C | 84.58 mm |
| April | 3.2 °C | 16.5 °C | 92.46 mm |
| May | 9 °C | 22.2 °C | 102.36 mm |
| June | 14.2 °C | 26.8 °C | 103.12 mm |
| July | 16.5 °C | 29.2 °C | 101.85 mm |
| August | 15.6 °C | 28.2 °C | 101.6 mm |
| September | 11.6 °C | 24.3 °C | 110.74 mm |
| October | 5.3 °C | 17.6 °C | 97.28 mm |
| November | 0 °C | 10.8 °C | 77.98 mm |
| December | -3.9 °C | 4.5 °C | 83.57 mm |
| Annual | 4.7 °C | 16.3 °C | 1092.19 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |