September 2011 Climate Summary for Central and Southeast Illinois

September 2011 Climate Summary for Central and Southeast Illinois

Drought conditions continued across the central portion of the state during September.  Rainfall amounts were generally 60-90% of normal.  Exceptions were across the far southeast portion of the region where precipitation was as much as two to two and a half of normal for September, and across portions of the Illinois Valley north of Havana where rainfall was near normal.

Check out the Drought Update for Central Illinois updated September 29th.

After a very warm start to the month, temperatures cooled significantly.  Despite temperatures reaching triple digits in many locations during the first few days of the month, the entire area ended up several degrees cooler than normal for September.





Although much of the month was quiet with respect to severe weather, September 3rd saw wind damage reports from a line of thunderstorms from Knox and Fulton Counties east to Peoria County.  The Lake Camelot area was particularly hard hit with widespread tree damage and some structural damage.  An additional report of a 60 mph gust was received from near Taylorville in Christian County.

Individual September 2011 Climate Summaries:

Champaign, Decatur, Lawrenceville, Lincoln, Mattoon, Peoria, Springfield

For additional climate information:

NWS Central Illinois Local Climate Page:
NOAA Midwest Regional Climate Center:

Illinois State Climatologist Office:

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