August weather forecast
Pennsylvania, USA

August in Pennsylvania heralds the closing stages of summer, with a gradual decline in temperatures towards the month's end. Typical readings hover between 60°F (15.6°C) and 82°F (27.8°C). While the month continues to carry the warmth of July, there's an unmistakable hint of the approaching autumn, especially as late August nights start to feel cooler.

Rainfall patterns in August are akin to July, marked by intermittent thunderstorms. These showers, however brief, provide a refreshing break from the warm summer days. The sun predominates the month, ensuring that the essence of summer remains, but the frequency and intensity of the rainfall slightly decrease, paving the way for the drier months ahead.

The Lake Erie region, consistent in its temperate climate, continues to offer more moderate temperatures. The breezes from the lake are especially appreciated during the hotter days. Similarly, the elevated regions of the state, while warm during the day, experience a noticeable drop in temperatures at night, sometimes requiring a light jacket for outdoor evening activities.

When contrasted with July, August brings a subtle transition. The initial days of the month mirror the peak summer warmth of July, but as the days roll on, there's an incremental cooling. The sun sets a bit earlier, and the nights, while still warm, hint at the forthcoming autumnal chill. August serves as a bridge between the intense heat of summer and the mild, colorful days of September, capturing the best of both worlds for those visiting or residing in Pennsylvania.

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• Philadelphia - August »
  The month with the warmest seawater in Philadelphia is August, with an average ocean temperature of 75.9°F (24.4°C). August weather continues on the warm trend of July in Philadelphia showing a slight decrease in temperature.
• Pittsburgh - August »
  The months with the lowest humidity in Pittsburgh are July and August, with an average relative humidity of 73%. The month with the most sunshine in Pittsburgh is August, with an average of 10.1h of sunshine.
• Allentown - August »
  On the first day of August in Allentown sunrise is at 5:58 am and sunset at 8:17 pm. The advent of August in Allentown reveals an average high-temperature of a still warm 81°F (27.2°C), showing minimal difference from the prior month.
• Erie - August »
  In Erie during August, the rain falls for 11.7 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Erie the average seawater temperature in August is 75°F (23.9°C).
• Reading - August »
  The month with the most rainfall in Reading is August, when the rain falls for 16.3 days and typically aggregates up to 3.54" (90mm) of precipitation. The month with the most rainfall in Reading is August, when the rain falls for 16.3 days and typically aggregates up to 3.54" (90mm) of precipitation.
• Scranton - August »
  In Scranton in August, it is raining for 14.8 days, with typically 2.36" (60mm) of accumulated precipitation. May through August, with an average maximum UV index of 5, are months with the highest UV index in Scranton, Pennsylvania.
• Bethlehem - August »
  In Bethlehem during August, the rain falls for 15.3 days and regularly aggregates up to 2.76" (70mm) of precipitation. In August, in Bethlehem, Pennsylvania, the rain falls for 15.3 days.
• Lancaster - August »
  Lancaster records an average high-temperature of a still warm 81°F (27.2°C) in August, closely mirroring the climate of the previous month. On the first day of August in Lancaster, sunrise is at 6:03 am and sunset at 8:19 pm.
• Harrisburg - August »
  The month with the most rainfall in Harrisburg is August, when the rain falls for 12.3 days and typically aggregates up to 1.3" (33mm) of precipitation. With the onset of August, Harrisburg's average high-temperature clocks in at a still warm 81.5°F (27.5°C), showing a minor fluctuation from the previous month.
• Altoona - August »
  In Altoona the average relative humidity in August is 78%. On the first day of August in Altoona, sunrise is at 6:10 am and sunset at 8:29 pm.
• York - August »
  The wettest months in York are July and August, with an average 2.01" (51mm) of rainfall. On the first day of August in York, sunrise is at 6:05 am and sunset at 8:21 pm.
• State College - August »
  Moving on from the peak temperatures of July, August in State College, Pennsylvania remains immersed in the summer vibe while beginning to hint at the impending arrival of Fall. In State College, during August, the rain falls for 15.5 days and regularly aggregates up to 2.32" (59mm) of precipitation.