The entire state of Wisconsin saw a noticeably warm spring (March - May), and has ended up being the 2nd warmest on record. For Milwaukee, the spring was also the 2nd warmest, while spring temperatures at Madison were 3rd warmest.
Also, the average temperature so far in 2010 (Jan-May) for Wisconsin is the 5th warmest on record.
Here is an image showing each state's ranking with Wisconsin being the 115th warmest out of the last 116 years on record.
Here is the state rankings for Jan - May 2010 temperatures: Wisconsin = 5th Warmest on Record
Precipitation across Wisconsin for the spring and so far in 2010 has been below normal overall. The spring precipitation for Wisconsin was the 15th driest on record, while Jan - May 2010 period was the 6th driest on record.
Here is the spring rankings showing Wisconsin as the 15th driest out of 116 years of data:
Here is the Jan - May 2010 state precipitation rankings: Wisconsin = 6th driest on record