Illinois State Water Survey - University of Illinois at Urbana-Champaign
INRS State Scientific Surveys
State Climatologist Office for Illinois
ACIS Maps
- 7-day Precipitation
- 30-day Precipitation
- 90-day Precipitation
- 7-day Temp Depart
- 30-day Temp Depart
- more ...
Other Links
Current Climate Conditions in Illinois
Dr. Jim Angel, State Climatologist
Current climate conditions in Illinois are represented here using tables, figures, and maps of temperature, precipitation, and snowfall for selected time periods. These are typically updated by 11 am each day. Additional maps for the Midwest are available on the right from the Applied Climate Information System (ACIS). The maps are grouped by parameter.
Tables
Temperature and precipitation by Crop Reporting District (CRD)/Climate Division (CD) for this month, last month, and last 30, 90, 120, 180 days as well as year-to-date. The CRD/CD division map can be found here. The program that generates these tables is a bit unstable to say the least.
Maps for Illinois
Precipitation
This Month: Last 7 Days: Last 30 Days: Last 90 Days: Year To Date:
Mean Temperature
This Month: Last 7 Days: Last 30 Days: Last 90 Days: Year to Date:
High Temperature
This Month: Last 7 Days: Last 30 Days: Last 90 Days: Year to Date:
Low Temperature
This Month: Last 7 Days: Last 30 Days: Last 90 Days: Year to Date:
Snowfall
This Month: Last 7 Days: Last 30 Days: Last 90 Days: Year to Date:
Comments
The snowfall year-to-date starts on September 1. Sometimes the daily updates of these maps fail. In which case the maps for the Midwest from the Applied Climate Information System (ACIS), mentioned above, are a possible substitute.
The data used in these products come from the National Weather Service (NWS) Cooperative Observer Program (COOP). This network of more than 11,000 volunteer observers nationwide, using approved instruments and observing techniques, provides high-quality climate data to the nation. The data are archived at the National Climatic Data Center (NCDC).
For other detailed precipitation reports of Illinois (rain, snow, and hail), visit the rapidly expanding Community Collaborative Rain, Hail, and Snow network (CoCoRaHS).