Current Climate Conditions in Illinois

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. Updated by 11 am. 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)
The CRD/CD division map can be found here (low res) and here (high res)

Graphs

Precipitation (inches): Total and Depart
Temperature (F): Actual and Depart
Last 12 months (view as one web page with data points here)

Maps for Illinois

Precipitation

This Month:
- Total
- Depart
- Percent
Last 7 Days:
- Total
- Depart
- Percent
Last 30 Days:
- Total
- Depart
- Percent
Last 90 Days:
- Total
- Depart
- Percent
Year To Date:
- Total
- Depart
- Percent

Mean Temperature

This Month:
- Actual
- Depart
Last 7 Days:
- Actual
- Depart
Last 30 Days:
- Actual
- Depart
Last 90 Days:
- Actual
- Depart
Year to Date:
- Actual
- Depart

High Temperature

This Month:
- Actual
- Depart
Last 7 Days:
- Actual
- Depart
Last 30 Days:
- Actual
- Depart
Last 90 Days:
- Actual
- Depart
Year to Date:
- Actual
- Depart

Low Temperature

This Month:
- Actual
- Depart
Last 7 Days:
- Actual
- Depart
Last 30 Days:
- Actual
- Depart
Last 90 Days:
- Actual
- Depart
Year to Date:
- Actual
- Depart

Snowfall

This Month:
- Total
- Depart
- Percent
Last 7 Days:
- Total
- Depart
- Percent
Last 30 Days:
- Total
- Depart
- Percent
Last 90 Days:
- Total
- Depart
- Percent
Year to Date:
- Total
- Depart
- Percent

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).

Illinois State Climatologist Office