Illinois Drought: Update July 18, 2005, Illinois State Water Survey

Illinois Drought

Since the last Drought Response Task Force meeting on July 7, Illinois has had some precipitation (see table). There is a strong difference in precipitation from north to south over the last two weeks, thanks largely to the remains of Hurricane Dennis. Southern Illinois enjoyed above-normal rainfall while far northern Illinois (north of I-80) was dismally dry.

 

Additional Figures (July 19, 2005):
Precipitation (inches) July 7-19, 2005
Precipitation (inches)
July 7-19, 2005
   
Precipitation (inches - departure from normal), July 7 - 19, 2005
Precipitation (inches - departure from normal), July 7 - 19, 2005
   
Precipitation (inches - departure from normal), March 1 - July 19, 2005
Precipitation (inches - departure from normal), March 1 - July 19, 2005
   
Precipitation (percent of normal) March 1 - July 19, 2005
Precipitation (percent of normal) March 1 - July 19, 2005
   

 

Map of climate divisions used below: http://www.sws.uiuc.edu/atmos/statecli/images/ilcldi1.gif

 

                                Illinois

                         7/7/2005 to 7/18/2005

 

Climate          <------Temperature----->   <---------Precipitation--------->

Division         Actual   Normal      Dev   Actual   Normal     Dev   Percent

-----------------------------------------------------------------------------

Northwest          75.4     74.4      1.0     0.22     1.44    -1.22       15

Northeast          75.2     74.3      0.9     0.30     1.47    -1.17       20

West               76.6     76.8     -0.2     0.56     1.31    -0.75       43

Central            76.1     75.9      0.2     0.98     1.32    -0.34       74

East               74.8     75.3     -0.6     1.74     1.41     0.33      123

West-southwest     75.8     77.4     -1.7     1.35     1.08     0.26      124

East-southeast     75.7     77.4     -1.6     1.86     1.26     0.60      147

Southwest          76.1     78.5     -2.4     2.97     1.14     1.84      261

Southeast          76.3     78.6     -2.3     2.70     1.16     1.54      232

 

State              75.7     76.4     -0.7     1.34     1.29     0.05      104

 

Illinois Drought

Illinois State Water Survey

2204 Griffith Dr
Champaign, IL 61820-7463
217-244-5459
info@isws.illinois.edu

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