Updated: November 24, 2013 6:26AM
Winter might not be here yet, but its chilly signature — snow — has already started to fall in the Aurora area.
Flurries were starting to appear in many Fox Valley towns during the late morning Tuesday.
The first widespread freeze of the season hit the area overnight. The first hard freeze spread across northern Illinois and northwest Indiana overnight, with the exception of downtown Chicago, said Kevin Birk, a meteorologist with the National Weather Service in Romeoville. Temperatures in a few areas, including Aurora, dropped into the low to mid-20s.
It’s a bit early for snowfall in Chicago, but it’s not unprecedented, Birk said.
According to the National Weather Service, the earliest that a trace of snow has fallen in the Chicago area is Sept. 25. That happened twice, in 1942 and 1948.
The average date for the first trace of snow is Oct. 30.
When it comes to measurable snow, which the National Weather Service regards as being 0.1 inches or more, the earliest date is Oct. 18. That happened in 1972 and 1989.
Actually, October 1989 was a snowy one in a way. The earliest date for more than one inch of snow in the area is Oct. 19, 1989, when 3.8 inches fell.
For now, though, things should be free of snow for a while. The rest of the week is going to be dry and chilly, with high temperatures in the mid-to-upper 40s.
“There’s no additional chance for snow in the foreseeable future,” Birk said.