Troutville, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.2 °C (low) to 14.4 °C (high). Annual precipitation averages 1114.6 Millimeters. Troutville 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 | -8.4 °C | 0.4 °C | 80.01 mm |
| February | -7.8 °C | 2.2 °C | 61.21 mm |
| March | -4.1 °C | 7.1 °C | 81.79 mm |
| April | 1.8 °C | 14.9 °C | 92.96 mm |
| May | 7.6 °C | 20.8 °C | 98.3 mm |
| June | 12.4 °C | 24.7 °C | 113.79 mm |
| July | 14.7 °C | 26.8 °C | 121.16 mm |
| August | 13.9 °C | 26.2 °C | 101.6 mm |
| September | 10.2 °C | 22.4 °C | 102.87 mm |
| October | 4.1 °C | 15.8 °C | 86.36 mm |
| November | -1.1 °C | 8.8 °C | 85.6 mm |
| December | -5.1 °C | 2.8 °C | 88.9 mm |
| Annual | 3.2 °C | 14.4 °C | 1114.55 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 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |