September Climate Summary

September Precipitation Highlights:

Monthly rainfall showed a strong gradient from northwest to southeast across the area. Amounts were well above normal north of a Havana to Bloomington line, with some areas as much as two inches above normal. Amounts quickly dropped off farther southeast. Highest rainfall deficits were in far east central to southeast IL, where some locations received less than one inch of rain.

September Temperature Highlights:

Temperatures were not far from normal during the month. A cool stretch of weather around the 18th-20th saw daily readings as much as 10 degrees below normal. This was balanced by several days of slightly above normal temperatures and resulted in average readings near to around 1 degree below normal.

September Climate Data:

Site	Precipitation	Departure from Normal	Average Temperature	Departure from Normal
Charleston	4.09"	+0.85"	67.5	-0.3
Danville	2.71"	-0.22"	66.3	-0.4
Decatur	1.37"	-1.77"	66.7	-1.1
Effingham	1.01"	-2.07"	NA	NA
Flora	0.84"	-2.30"	67.3	-0.5
Galesburg	5.23"	+1.76"	63.5	-1.2
Havana	1.82"	-1.32"	NA	NA
Jacksonville	3.69"	+0.16"	65.3	-0.4
Lincoln	1.85"	-1.36"	65.0	-0.9
Normal	4.95"	+1.81"	64.1	-1.0
Olney	0.79"	-2.28"	67.0	-0.8
Paris	0.34"	-2.84"	65.1	-1.4
Peoria	5.84"	+2.69"	65.2	-0.9
Springfield	2.45"	-0.45"	66.5	-0.3
Tuscola	2.42"	-0.59"	65.5	-0.9
Urbana	2.91"	-0.22"	66.0	-0.2

The following links are the monthly and seasonal climate summaries for area cities. Only the summaries for Peoria, Springfield, and Lincoln are considered "official", meaning they are the station of record for their respective locations. The other summaries are "supplemental", meaning another location in the area is the official climate station for the city.

Peoria -- Peoria International Airport
Springfield -- Abraham Lincoln Capital Airport
Lincoln -- NWS Office
Champaign -- University of Illinois-Willard Airport
Decatur -- Decatur Airport
Lawrenceville -- Lawrenceville-Vincennes International Airport
Mattoon -- Coles County Memorial Airport

Climate data for other cities is available at http://w2.weather.gov/climate/xmacis.php?wfo=ilx

October Look Ahead:

Official outlooks from NOAA's Climate Predication center show no clear trends on temperature, while precipitation is expected to be below normal.