Venango, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.4 °C (low) to 14.5 °C (high). Annual precipitation averages 1245.6 Millimeters. Venango 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.3 °C | 0.6 °C | 98.3 mm |
| February | -8.2 °C | 1.9 °C | 71.63 mm |
| March | -4.1 °C | 6.8 °C | 87.12 mm |
| April | 1.7 °C | 14.3 °C | 104.65 mm |
| May | 7.6 °C | 20.6 °C | 103.89 mm |
| June | 12.6 °C | 24.9 °C | 127.51 mm |
| July | 14.9 °C | 27.1 °C | 120.9 mm |
| August | 14 °C | 26.3 °C | 102.36 mm |
| September | 10.4 °C | 22.8 °C | 112.01 mm |
| October | 4.8 °C | 16.1 °C | 114.55 mm |
| November | -0.2 °C | 9.2 °C | 99.06 mm |
| December | -4.7 °C | 3.2 °C | 103.63 mm |
| Annual | 3.4 °C | 14.5 °C | 1245.61 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |