On June 15th, Philadelphia experiences a range of temperatures. The hottest temperature on record for this date was 100.0°F in 1994, while the coldest recorded temperature was 48.9°F in 1978. The average temperature for this day is 71.49°F, with an average high of 76.59°F and an average low of 66.38°F. In 1978, an interesting news item from Philadelphia was the opening of the Gallery at Market East, a major shopping center located in the heart of the city.

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