We had another widespread frost or freeze across southcentral and most of southeast Wisconsin on the morning of Oct 19th. This is within the normal time frame for the first freeze for far southeast Wisconsin. We will no longer issue Frost or Freeze Headlines for far southeast Wisconsin, and the remainder of southern Wisconsin.
The map below shows the median date of the first freeze for the Midwest:
This data is supplied by the Midwest Regional Climate Center (check it out, it's a very cool website!)
Go here for even more spring frost/freeze information.