Walnuttown, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6 °C (low) to 17.1 °C (high). Annual precipitation averages 1258 Millimeters. Walnuttown is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.8 °C | 3.6 °C | 87.12 mm |
| February | -5.1 °C | 5 °C | 70.61 mm |
| March | -0.8 °C | 9.8 °C | 96.27 mm |
| April | 4.7 °C | 16.9 °C | 98.04 mm |
| May | 10.2 °C | 22.3 °C | 101.85 mm |
| June | 15.4 °C | 27.2 °C | 128.52 mm |
| July | 18.1 °C | 29.8 °C | 127.25 mm |
| August | 17.1 °C | 28.7 °C | 125.98 mm |
| September | 13 °C | 25.1 °C | 127 mm |
| October | 6.6 °C | 18.4 °C | 113.03 mm |
| November | 1.3 °C | 11.9 °C | 82.04 mm |
| December | -2.7 °C | 6.2 °C | 100.33 mm |
| Annual | 6 °C | 17.1 °C | 1258.04 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |