Our recent cold snap was one of the coldest in the past 18 years in southern Wisconsin.
But how unusual was it? Looking historically, not that unusual. No records were broken at Milwaukee or Madison. The following information will help put this in context.
We have had 5 consecutive days at both Madison and Milwaukee with low temperatures of zero or below. That streak is forecast to end tonight. This is the longest streak at Madison since a 6 day period ending January 17th of 2009. For Milwaukee, it is the longest streak since a 6 day period ending February 8th, 2007. So this streak is the longest in the past 5-7 years.
The longest streaks of consecutive days of zero or below for low temperatures:
Recently, since 1990, here are the longest streaks
So far this 2013-2014 winter season, the following are the total number of days with low temperatures of zero or below:
Milwaukee: 11 days
Madison: 17 days
Jeff Craven, Science and Operations Officer
National Weather Service Milwaukee/Sullivan WI