On Jan 12 in weather history...
1918 -- Fort Wayne dropped to its all-time low temperature of -24°. Four inches of snow had fallen the day before. Bloomington and Warsaw, Indiana fell to -20°.
1960 -- South Bend's wettest January day, with 2.81" of precipitation.
2005 -- Storms moving though Effingham IL produced 70 mph winds at the local NWS.
2005 -- White dense fog plagued Northen Indiana causing major crashes on the Indiana Toll Roads. 3 people died in the crashes of this fog event