On this date in 1940, the temperature dropped to 30, and a half-inch of snow was measured at the city’s brand-new official measuring station at what was then Southwest Airport.
Snow is quite unlikely on Oct. 19, 2016.
At 3:22 p.m. the high at Philadelphia International Airport reached 86, beating the old standard of 80 for the date, set in 1947.
The warm spell backs off by the end of the workweek, and the cooler nights should give the foliage colors a boost as the season enters the annual peak.
Incidentally, the Oct. 19, 1940, snow wasn’t the earliest on record. That distinction still belongs to Oct. 10, 1979, when just over 2 inches was measured in Philly.