Large archive of U.S. and world climatological data. Includes local climatological data. The University of Missouri-Columbia is considered an authorized user of this site so if you are affiliated with UMC, you can access the items online which have the notation "Free access by certain agencies and individuals (limited access only)".
Midwestern Regional Climate Center provides climatological data for mid-western states including current data, historical climate summaries and historical weather events such as droughts and severe weather.
National Climatic Data Center database of U.S. storm events. Searchable by state and then by date and event. Coverage is 1993 to date for all weather events. Data on tornadoes, thunderstorm winds and hails goes back to the 1950's.
Print publication which covers the United States state by state, month by month with annual summaries.
Ellis Library QC 983 .A52 (1966 to date)
UM Depository 551.5 Un31c (1914-1965)