Past Weather Data 

    Local Climate Data (Duluth & International Falls, 1996 to present)
    National Climate Data Center  (Historical Daily & Hourly Data, 1996-Present)
    MN State Climatology Office
    WI State Climatology Office
    How to Obtain Data for Legal Purposes
    History of Duluth Weather Observations (pdf file may take a few min to download)
  Historical Storm/Events
    Official National Storm Data Archive  (Summer & Winter - 3 month lag time)
    Severe Storm Reports (1999- Present)
    Local Storm Reports (Summer & Winter)
    Winter Storm Archive
  More Past Weather
    Archived Radar Imagery (NCDC) ('98 - Present)
    Surface Station Data & Maps ('98 - Present)
    Hourly MN Surface Maps ('96-present)
    MN Snow Depth Maps ('97- Present)
    Archived Satellite Images ('96 - Present)
    Soundings (SPC) (past 7 days)
    Archived Soundings ('96 - Present) is the U.S. government's official web portal to all federal, state and local government web resources and services.