Climate Monitoring / Climate At A Glance / ILLINOIS / Help page delimiter

ILLINOIS

Climate Summary

September 2009

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The average temperature in September 2009 was 65.6 F. This was -0.9 F cooler than the 1901-2000 (20th century) average, the 40th coolest September in 115 years. The temperature trend for the period of record (1895 to present) is -0.1 degrees Fahrenheit per decade.

2.20 inches of precipitation fell in September. This was -1.31 inches less than the 1901-2000 average, the 24th driest such month on record. The precipitation trend for the period of record (1895 to present) is -0.06 inches per decade.

Select from the options below to view graphs and tables of monthly temperature and precipitation data for ILLINOIS , then click "submit". (Please wait 20-30 seconds)

Data Type :

First Year to Display :

Period :

Last Year to Display :

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BegYr: EndYr:

Output Type: Line Chart* Bar Chart*
Plot Trend Line No Trend Line
*A minimum of 8 years is required to generate chart output.

Table
Sort by: Year Rank

Please see our ftp site for statewide temperature and precipitation data
which are used in making these charts and tables.

Information for users experiencing problems receiving requested output.

Climate Monitoring / Climate At A Glance / ILLINOIS / Help

http://lwf.ncdc.noaa.gov/oa/climate/research/cag3/il.html
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Last Updated Thursday, 08-Oct-2009 11:00:07 EDT by Karin.L.Gleason@noaa.gov
Please see the NCDC Contact Page if you have questions or comments.