5) October 18 dust storm (image courtesy of the Wichita NWS)
4) May 30 storms
3) April 14 outbreak (image courtesy of Brandon Ivey)
Salina nearly got hit and Wichita did but not a single person lost their life in Kansas. 54 tornadoes touched in Kansas, exceeding the April 26, 1991 tornado outbreak (26).
2) Harveyville tornado: February 28, 2012
My hometown took a direct hit from an EF-2 tornado, which raced through town at nearly 75 mph! It took the life of my folk's neighbor and damaged about 40% of the town's structures. See here for the link detailing the recovery effort.
This should come as no surprise: easily the weather event of the year and which unfortunately continues into 2013. Wichita recorded its warmest year ever on record, along with 36 triple-digit days. Wichita also recorded just over 25" of precipitation for the year, over 7.5" below normal! Other spots in the state were 10-12" below normal!