While mighty rare (only 6 times since 1893) the first measurable snow can occur in October here in Chester County PA. The last occurrence was in 2011 and was also the largest October snowstorm in county history. It was elevation driven with between 5" to 9" of snow falling across the stations over 550 ft ASL. Of note the October snow in 1972 in some areas of the county would for the most part be the only snow of the winter season. In fact at Coatesville that was the only winter that no measurable snow was recorded.
Not as dense more like a heavy haze but it was sunny over my head this morning. Not so much right at the beach or to the south of me.
still no actual offshore flow to wipe the Marine layer out.