These are the maximum temperatures each year in the West Lafayette data set (Purdue University 1879-1953, Purdue Ag Farm 1954-Present):

We have hit 90 every single summer since 1879.  The first occurrence of 90 in the summer is typically June 4 at West Lafayette.

This is a good measure of air conditioning use each month.

These are the top 10 worst months of highest demand for air conditioning (even before it was invented) at West Lafayette (base at 65 degrees) on record (1879-Present)................

Still working on this.....still have to go through 1890-1900........

Cooling Degree Days:

1.  580  July 1936

2.  538  July 1934

3.  498  July 1901

4.  481  July 1921; July 1931

5.  478  July 1916

6.  474  August 1936

7.  473  July 1887; August 1947

8.  448  July 1933

9.  442  June 1942

10.  439  August 1881

These are the top 10 worst months for heat stress to plants with +86-degree base:

(I still need to go through 1890-1898).

1.  380  July 1936

2.  346  August 1881

3.  301  July 1934

4.  295  July 1887

5.  271  July 1901

6.  251  June 1933

7.  233  August 1936

8.  213  July 1931

9.  207  June 1934

10.  202  July 1916

These are the top 10 worst May-September periods for heat stress in plants with +86-degree base:

(I still need to go through 1882-1886 & 1888-1898).

1.  762  1936

2.  725  1887

3.  700   1881

4.  661  1934

5.  600  1933

6.  490  1931

7.  442  1895; 1901

8.  428  2012

9.  414  1913

10.  413  1941

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