Douglassville, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.8 °F (low) to 63.7 °F (high). Annual precipitation averages 48.2 Inches. Douglassville is located in USDA Plant Hardiness Zone 7a. 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 | 22.5 °F | 39.4 °F | 3.42 in. |
| February | 23.8 °F | 42.2 °F | 2.79 in. |
| March | 31.2 °F | 50.6 °F | 3.96 in. |
| April | 41.5 °F | 63.4 °F | 3.75 in. |
| May | 51.5 °F | 73.0 °F | 3.87 in. |
| June | 61.1 °F | 81.7 °F | 4.46 in. |
| July | 65.9 °F | 86.2 °F | 4.75 in. |
| August | 64.2 °F | 84.5 °F | 4.35 in. |
| September | 56.6 °F | 78.1 °F | 5.16 in. |
| October | 45.1 °F | 66.0 °F | 4.39 in. |
| November | 34.7 °F | 54.7 °F | 3.28 in. |
| December | 27.9 °F | 44.4 °F | 4.02 in. |
| Annual | 43.8 °F | 63.7 °F | 48.2 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |