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Click here for graphic showing U.S. Department of Commerce logo and link to site Climate of 2002 - September
Illinois Drought

National Climatic Data Center, 11 October 2002

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This month was drier than normal, statewide, ranking as the 20th driest September in the 108-year record. However, long-term conditions have been wet, with the hydrologic year (October-September) coming in at eleventh wettest.

As noted by the Illinois state climatologist's office (Dr. Jim Angel),

  • above average precipitation fell across parts of southern Illinois in September; however, most of the state received below average rainfall
  • as a result, soil moisture conditions in the state at the end of September varied greatly from north to south and with depth (Figure 1 in the report)
  • overall, soil moisture in Illinois at the end of the month was below normal (Figure 2 in the report)

Statewide Precipitation Ranks
for Illinois , 2001-2002
Period Rank
Sep 20th driest
Aug-Sep 52nd driest
Jul-Sep 37th driest
Jun-Sep 31st driest
May-Sep 36th wettest
( 73rd driest)
Apr-Sep 24th wettest
( 85th driest)
Mar-Sep 25th wettest
( 84th driest)
Feb-Sep 25th wettest
( 84th driest)
Jan-Sep 26th wettest
( 83rd driest)
Dec-Sep 25th wettest
( 83rd driest)
Nov-Sep 29th wettest
( 79th driest)
Oct-Sep 11th wettest
( 97th driest)
Click here for graphic showing Illinois statewide precipitation departures, January 1998 - present
larger image

Click here for graphic showing Illinois statewide Palmer Z Index, January 1998 - present
larger image

Click here for graphic showing Illinois statewide precipitation, September 1895-2002
larger image
Click here for graphic showing Illinois statewide Palmer Hydrological Drought Index, January 1900 - September 2002
larger image


Graphic showing NOAA logo NCDC / Clim. Monitoring / Climate-2002 / Sep / U.S. Regional Drought / Search / Help

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