• Recent Data
    • Local and Regional Data
      • Latest Precipitation and Min/Max Temperature Table for Northern Illinois Region (archive of these data)
      • Images of Chicago Region Coop Obs: High Temps, Low Temps, Precipitation, Snowfall, Snow Depth
      • Northern Plains and Midwest: Normal Temps, Observed Maximum and Minimum Temps for Yesterday
    • National Data
      • Last 24-hr Observed Data: High Temps, Low Temps, 24-hr Temp Change, Precipitation, Snow Cover
      • Today's Normal Temperatures: Maximum, Minimum
      • Snow Analyses
  • Historical Data for the Coop
    • 1981-2010 Climate Normals and Updated Records [updated 1/6/2011]
    • 1966-2005 DeKalb Coop Daily High, Low, Precip and Snowfall (csv format)
    • 1966-2005 DeKalb Coop Monthly Precipitation Tallies (csv format)
    • 1966-Current DeKalb Coop Monthly Precipitation Tallies
    • DeKalb Climate Normals -- Average Daily Temperatures based on 1971-2000 Climate Record (csv format)
    • DeKalb Snow Climatology Data
    • Illinois Climate Network Data (includes monthly tallies for DeKalb and other Illinois Stations)
  • Historical Data for the Coop's Davis Weather Station (These data are not official Coop records)
    • Daily Report from Coop Davis Weather Station
  • Additional Data Sources
    • National Climatic Data Center
    • Storm Prediction Center (historical storm data)
    • Midwest Climate Center
    • Illinois State Climatologist Office
    • Illinois Climate Network Data
    • NWS Romeoville (Chicago)