-11∆í in 1983 was the coldest.
5∆í in 1972 is the 2nd coldest.
(from Tom Skilling)
What do you think the high will actually be? The winner will receive a free gift bought from the dollar store (shipping included!).
I will be using the official temperature used for chicago and that is O’Hare’s reading. Even though I think Midway should be the official reading since it is truly inside the city of chicago. But the high temperature at O’Hare on December 24 is what we are guessing here.
The last minute you can make a guess is at December 23 11:59pm.
And yes, you can guess the same number as someone else. I will mail out a maximum of 10 prizes to the correct guesses. If there is not exact correct guess, the closest winner(s) will get a prize.
You can enter your guess in the comments box at the bottom of this page