Philadelphia, Pennsylvania – A newly released climate summary shows April 2026 brought unusually warm temperatures and below-average rainfall across the Philadelphia metro region, including southeastern Pennsylvania, South Jersey, and parts of Delaware.
According to the National Weather Service in Mount Holly, April featured significant temperature swings but ended notably warmer than normal across all major reporting stations, including Philadelphia, Allentown, Reading, and Atlantic City. Philadelphia recorded an average temperature of 58.7°F, which is 4.2 degrees above normal, placing it among the warmest Aprils on record for the city.
Other locations saw similar trends. Reading reported a 4.7-degree increase above average, while Wilmington and Mount Pocono also finished more than 3 degrees above typical April temperatures. High temperatures peaked in the low 90s in several locations, including Philadelphia, Atlantic City, and Reading around mid-month.
Despite the warmth, precipitation totals lagged behind seasonal averages. Philadelphia recorded just 2.11 inches of rain, more than an inch below normal. Trenton and Georgetown saw even larger deficits, with rainfall nearly 2 inches below average in some areas. The lack of consistent rainfall contributed to increasingly dry ground conditions heading into May.
Snowfall was virtually nonexistent across the region, with most stations reporting zero accumulation for the month, well below historical averages. Meteorologists noted that while April snow is typically minimal, the complete absence across multiple reporting sites stands out.
The report highlights a broader pattern of warmer, drier conditions impacting the Mid-Atlantic this spring, raising concerns about early-season dryness and its potential effects on agriculture and water resources if trends continue into the summer months.
