April weather forecast
Pennsylvania, USA

April in Pennsylvania heralds a more consistent spring ambiance, with temperatures generally fluctuating from 37°F (2.8°C) to 57°F (13.9°C). As the month unfolds, snow's likelihood diminishes considerably, giving way to moderate rainfall and occasional thunderstorms. The state's diverse topography, from the Appalachian Mountains to the plains and river valleys, profoundly influences the weather nuances in various regions.

While March witnessed the early signs of spring, April showcases the season in its full bloom. Trees sprout fresh leaves, flowers blossom in gardens and parks, and the landscape transforms into a tapestry of vibrant colors. The consistent rise in temperatures and longer daylight hours provide ample opportunity for outdoor activities and exploration.

Rainfall is more frequent during April, but it is not as torrential as in the coming summer months. However, the combination of the residual moisture from March and the regular April showers can lead to muddy conditions, especially in the countryside and wooded areas. While the southeastern parts, with their distinct climatic influences, enjoy mild and wet conditions, areas closer to Lake Erie can still experience cooler temperatures and sporadic late snow showers, particularly in early April.

Comparing April to the preceding month, there's a marked decline in weather unpredictability. The chances of a cold snap or a sudden drop in temperatures are minimal. In contrast to the chilling winds of February and the transitional phase of March, April in Pennsylvania sets a comfortable and refreshing stage, paving the way for the warmth of the upcoming May.

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• Philadelphia - April »
  In Philadelphia in April, during 12.4 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Philadelphia, during April, snow falls for 0.1 days and regularly aggregates up to 0.08" (2mm) of snow.
• Pittsburgh - April »
  During 1.4 snowfall days, in April, Pittsburgh aggregates 0.16" (4mm) of snow. During 1.4 snowfall days, in April, Pittsburgh aggregates 0.16" (4mm) of snow.
• Allentown - April »
  In Allentown, in April, snow falls for 0.3 days, with typically accumulated 0.2" (5mm) of snow. In Allentown, in April, snow falls for 0.3 days, with typically accumulated 0.2" (5mm) of snow.
• Erie - April »
  In Erie, during April, the rain falls for 9.2 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Erie, in April, during 1.1 snowfall days, 0.08" (2mm) of snow is typically accumulated.
• Reading - April »
  In Reading in April, snow falls for 0.4 days, with typically accumulated 0.16" (4mm) of snow. In Reading, in April, during 0.4 snowfall days, 0.16" (4mm) of snow is typically accumulated.
• Scranton - April »
  In Scranton in April, during 3.1 snowfall days, 0.55" (14mm) of snow is typically accumulated. In Scranton, during April, snow falls for 3.1 days and regularly aggregates up to 0.55" (14mm) of snow.
• Bethlehem - April »
  In Bethlehem in April, snow falls for 0.4 days, with typically accumulated 0.16" (4mm) of snow. In Bethlehem during April, the rain falls for 15.5 days and regularly aggregates up to 2.44" (62mm) of precipitation.
• Lancaster - April »
  In Lancaster during April, the rain falls for 15.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. The least humid month in Lancaster is April, with an average relative humidity of 76%.
• Harrisburg - April »
  In April, in Harrisburg the rain falls for 13.1 days. The months with the lowest humidity are March and April, with an average relative humidity of 75%.
• Altoona - April »
  In Altoona in April, snow falls for 2.5 days, with typically accumulated 0.75" (19mm) of snow. In Altoona, in April, snow falls for 2.5 days, with typically accumulated 0.75" (19mm) of snow.
• York - April »
  In York during April, the rain falls for 13.8 days and regularly aggregates up to 1.38" (35mm) of precipitation. In York, during April, the rain falls for 13.8 days and regularly aggregates up to 1.38" (35mm) of precipitation.
• State College - April »
  In State College, Pennsylvania, in April, during 17.8 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In State College, during April, snow falls for 2.1 days and regularly aggregates up to 0.79" (20mm) of snow.