Wisconsin
The highest temperature ever recorded in Wisconsin was in the Wisconsin Dells.  It was recorded on July 13, 1936. The temperature reached 120 °F (46 °C).  The lowest temperature in Wisconsin ever written down was in the village of Couderay.  The temperature there was only –55 °F (-48 °C).  This was recorded on both February 2 and February 4, 1996.