Agencies

• Illinois State Water Survey (ISWS)
  • ISWS main page
  • ISWS Atmospheric Environment Section
  • Illinois State Climatologist Office
  • Midwestern Regional Climate Center
  • Water and Atmospheric Resources Monitoring Program (WARM)

• National Weather Service (NWS)
  • NWS main page
  • NWS weather data
  • NWS regional offices
    • Chicago
    • Lincoln
    • Paducah
    • Quad Cities
    • St. Louis

• National Oceanic and Atmospheric Administration (NOAA)
  • NOAA main page
  • NOAA weather homepage
  • NOAA climate homepage
  • Interactive Weather Information Network (IWIN)

Climate Data

• National weather data
• Champaign/Urbana IL
• Chicago, Rockford, Springfield, Peoria, Moline
• Historical Summaries of Illinois Stations
• Illinois Water and Climate Summary (Monthly)
• On-Line Climate Data
• Storm Damage Reports

Climate Topics

• The Boneyard Precipitation Network
• Climate Maps of Illinois
• Climate Trends
• Current Climate Conditions in Illinois
• Drought
• El Niño and La Niña
• Hail
• Lightning
• Records - extremes in the state
• Summer Heat
• Tornadoes
• Weather Instruments
• Wind Climatology
• Winter Storms
• Heat Index
• Wind Chill
• Degree Days

Educational Links

• State Climatologist's Educational Links
• ISWS Library's Weather and Climate Links