Local Weather HIstory: The Longest Stretches of 90s on Record

These are the longest stretches at or above 90 degrees for Greater Lafayette.

Posted: Jul 3, 2020 11:40 AM
Updated: Jul 3, 2020 11:57 AM

In doing this research, I really expected 1936 to have the longest 90s stretch on record (1879-present).  However, several embedded 85-89 days prevented 1936 from having the longest stretch.

Although 1936 is still the hottest summer on record and saw the hottest July on record AND it saw 13 consecutive days in the 100s (including 3 in a row of at least 110!), it did not have the longest 90 to 90s streak.  That record belongs to 1983.

1983 was a hot & dry summer with many days in the 90s, including 4 days of 100-104.  It was the hottest summer since the early 1950s before being surpassed in 1988 for heat & dryness.

Note the extent of above normal temperatures in 1983 when the heart of the heat occurred in mid to late summer:

Note how rainfall was below normal over a large area:

So here is the list of the top 10 longest stretches of consecutive days at or above 90 degrees.

Purdue University

1.  23 Days 

July 9-31, 1983

2.  21 Days

July 10-August 2, 1901

3.  20 Days

August 7-26, 1936

4.  19 Days

July 18-August 5, 1940

5.  17 Days

June 16-July 2, 1933

6.  16 Days

July 25-August 9, 1931

July 14-29, 1934

July 3-18, 1936

7.  14 Days

July 18-31, 1919

June 23-July 6, 1934

8.  13 Days

July 6-18, 1887

July 13-25, 1932

June 28-July 9, 1949

August 10-21, 1995

July 21-August 2, 1999

9.  12 Days

July 25-August 5, 1887

September 16-27, 1891

September 5-16, 1897

June 30-July 11, 1911

June 20-July 1, 1941

10.  11 Days

July 3-13, 1881

June 16-26, 1910

June 24-July 4, 1931

August 1-11, 1938

July 25-August 4, 1941

July 11-20, 1980

June 27-July 7, 2012

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