Recent Rains Help in Parts of Illinois

Both rainfall totals and temperatures in August look far more promising than July. Here is the breakdown by climate division in August for Illinois. I apologize for the formatting – you will have to scroll left and right to see the entire table. By the way, in Illinois the climate divisions and crop reporting districts cover the same areas (see map below). I have a set of tables like these that update daily at Current Conditions in Illinois.

Temperatures for August are running 0.3 to 2.3 degrees below normal. Precipitation is running 0.4 to 1.4 inches below normal in the climate divisions to the north and west. The remaining climate divisions are above normal.

                                  Illinois 
                        08/01/2012 to 08/20/2012

Climate          <------Temperature----->   <---------Precipitation--------->
Division         Actual   Normal      Dev   Actual   Normal     Dev   Percent
-----------------------------------------------------------------------------
Northwest          69.4     71.7     -2.3     1.97     2.98    -1.01       66
Northeast          70.0     71.7     -1.7     1.97     2.84    -0.87       69
West               72.0     74.1     -2.1     1.08     2.50    -1.42       43
Central            71.3     73.2     -1.9     2.04     2.51    -0.47       81
East               71.0     72.6     -1.6     3.06     2.59     0.47      118
West-southwest     73.3     74.8     -1.4     2.31     2.16     0.14      107
East-southeast     73.7     74.8     -1.1     3.38     2.20     1.19      154
Southwest          75.8     76.1     -0.3     2.56     2.21     0.35      116
Southeast          75.7     76.2     -0.5     3.19     2.05     1.14      156

State              72.3     73.8     -1.5     2.39     2.46    -0.07       97

Dev means Deviation From Normal, Percent means Percent of Normal

Here are the temperatures and precipitation since January 1, 2012. While the recent rains are welcome, significant long-term precipitation deficits remain across the state.

                                 Illinois 
                        01/01/2012 to 08/20/2012

Climate          <------Temperature----->   <---------Precipitation--------->
Division         Actual   Normal      Dev   Actual   Normal     Dev   Percent
-----------------------------------------------------------------------------
Northwest          54.7     50.1      4.6    16.05    24.09    -8.04       67
Northeast          54.7     50.1      4.7    17.32    24.06    -6.73       72
West               57.4     53.1      4.3    14.39    24.77   -10.38       58
Central            56.8     52.5      4.4    14.19    24.57   -10.38       58
East               56.6     52.1      4.5    17.41    24.92    -7.51       70
West-southwest     59.0     54.6      4.4    18.17    24.71    -6.54       74
East-southeast     59.4     54.9      4.4    18.30    26.88    -8.58       68
Southwest          61.2     56.8      4.5    19.18    27.68    -8.50       69
Southeast          61.7     57.0      4.6    19.24    29.28   -10.04       66

State              57.8     53.3      4.5    17.12    25.52    -8.40       67
Climate divisions (and crop reporting districts) in Illinois.
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