Today was the 20th day this winter that temperatures have dipped below zero at O’Hare. Tomorrow should be the 21st.
That is triple the average of 7 days per winter. The record number of sub-zero days for a winter was 25 set back in 1884-1885. The way this winter has been going that record is certainly within reach. 50 out of 72 days or 69% of days this winter have been below average.