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 »
  August is the month with the warmest seawater in Philadelphia with an average ocean temperature of 75.9°F (24.4°C). August weather continues on the warm trend of July in Philadelphia, Pennsylvania, showing a slight decrease in temperature.
• Pittsburgh - August »
  On the first day of August in Pittsburgh, Pennsylvania, sunrise is at 6:18 am and sunset at 8:34 pm. In August, summer starts to wind down in Pittsburgh, though warm weather persists throughout the month.
• Allentown - August »
  On the first day of August in Allentown sunrise is at 5:59 am and sunset at 8:16 pm. In Allentown in August, it is raining for 14.8 days, with typically 2.68" (68mm) of accumulated precipitation.
• Erie - August »
  With an average ocean temperature of 75°F (23.9°C), August is the month with the warmest seawater in Erie. With an average ocean temperature of 75°F (23.9°C), August is the month with the warmest seawater in Erie.
• Reading - August »
  In August, the average heat index, which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C). 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 »
  The arrival of August in Scranton brings an average high-temperature of a still warm 77.5°F (25.3°C), closely following the temperature pattern of July. In Scranton, Pennsylvania, in August, during 14.8 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.
• Bethlehem - August »
  On the first day of August in Bethlehem, Pennsylvania, sunrise is at 5:59 am and sunset at 8:16 pm. In Bethlehem, in August, during 15.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.
• Lancaster - August »
  The month with the most rainfall in Lancaster is August, when the rain falls for 15.7 days and typically aggregates up to 3.35" (85mm) of precipitation. In August, in Lancaster, Pennsylvania, the rain falls for 15.7 days.
• 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. In Harrisburg during August, the rain falls for 12.3 days and regularly aggregates up to 1.3" (33mm) of precipitation.
• Altoona - August »
  In Altoona, during August, the rain falls for 15.3 days and regularly aggregates up to 1.65" (42mm) of precipitation. As August takes its course, Altoona's average high-temperature registers at a still warm 79.3°F (26.3°C), closely aligning with the preceding month.
• York - August »
  The months with the most rainfall in York are July and August, with an average 2.01" (51mm) of precipitation. In York in August, during 13.5 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.
• 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. On the first day of August in State College, Pennsylvania, sunrise is at 6:08 am and sunset at 8:26 pm.