Actually, the 2006 season was pretty late and pretty terrible in Minnesota - although not as bad as 2007! The MPX CWA went until late, late July before having its first tornado in '06 - an unexpected spin-up in Yellow Medicine County (I believe - thinking off the top of my head), and it took a certain former forecaster (heh) to write and issue a Public Info Statement that very morning at the end of her mid shift, addressing the almost record late start to the season, for THAT to happen. August featured the Watonwan County F3 near Butterfield and St. James on the 1st, as well as 2 tornadoes on the 24th - one west of Courtland in Brown County and the other, the long-tracked F3 that followed a similar path to the 3/28/98 F3 that hit St. Peter. Of course, the "big" one was the September 16th F2 that hit Rogers in Hennepin County, as well as a few others that were found after the fact further west in Wright County.
Of course, if you want to rely on Minnesota to salvage the chase year, the northwestern most county is almost always a sure bet for at least one good tornado day each year!