Watsontown, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5 °C (low) to 16.3 °C (high). Annual precipitation averages 1152.4 Millimeters. Watsontown 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 | -6.8 °C | 2.1 °C | 85.09 mm |
| February | -6.2 °C | 3.8 °C | 66.29 mm |
| March | -2.1 °C | 9.1 °C | 94.49 mm |
| April | 3.6 °C | 16.6 °C | 106.17 mm |
| May | 9.4 °C | 22.4 °C | 103.63 mm |
| June | 14.7 °C | 26.9 °C | 98.55 mm |
| July | 16.9 °C | 29.4 °C | 118.62 mm |
| August | 16.1 °C | 28.3 °C | 91.69 mm |
| September | 11.9 °C | 24.5 °C | 105.41 mm |
| October | 5.7 °C | 17.6 °C | 92.2 mm |
| November | 0.3 °C | 10.8 °C | 89.92 mm |
| December | -3.7 °C | 4.6 °C | 100.33 mm |
| Annual | 5 °C | 16.3 °C | 1152.39 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |