Start of Meteorological Spring
Tomorrow, March 1st, is the start of meteorological spring! For better record keeping and a more accurate depiction of the season, meteorological spring includes all of March, April and May. This is different from the astronomical season spring which begins on the vernal equinox - March 20th at 5:45 PM (only 20 days away).
Some data put together by Daryl Herzmann of Iowa State shows when the coldest, on average, 91 day period ends (aka when winter ends). According to this data, the coldest 91 days for Milwaukee ends around March 4th.
The current forecast shows a little of this warming trend. Most days over the next 10 in the 20s or even 30s. Happy Spring!