Reynoldsville, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3 °C (low) to 14.7 °C (high). Annual precipitation averages 1133.3 Millimeters. Reynoldsville 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 | -8.3 °C | 0.7 °C | 84.84 mm |
| February | -7.9 °C | 2.3 °C | 64.26 mm |
| March | -4.2 °C | 7.3 °C | 85.34 mm |
| April | 1.6 °C | 15.1 °C | 96.52 mm |
| May | 7.2 °C | 21.1 °C | 99.82 mm |
| June | 12.2 °C | 25 °C | 118.36 mm |
| July | 14.4 °C | 27 °C | 113.79 mm |
| August | 13.6 °C | 26.6 °C | 101.85 mm |
| September | 9.8 °C | 22.8 °C | 101.85 mm |
| October | 3.8 °C | 16.2 °C | 87.88 mm |
| November | -1.2 °C | 9.1 °C | 87.88 mm |
| December | -4.9 °C | 3.1 °C | 90.93 mm |
| Annual | 3 °C | 14.7 °C | 1133.32 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 |