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June 2021 General Discussion


Hoosier
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Performed a quick little research project.  

This is a bit arbitrary, but I took a look at years that had at least 5 days of 90+ in Chicago by June 15 (2021 has 7).  It has now happened 26 times.  In those years, the final 90 degree count had a wide range from 12 days (1920) to 47 days (1988).  A handful of years finished in the teens with the vast majority finishing with 20+ days.

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3 hours ago, Hoosier said:

Performed a quick little research project.  

This is a bit arbitrary, but I took a look at years that had at least 5 days of 90+ in Chicago by June 15 (2021 has 7).  It has now happened 26 times.  In those years, the final 90 degree count had a wide range from 12 days (1920) to 47 days (1988).  A handful of years finished in the teens with the vast majority finishing with 20+ days.

I was browsing some Chicago heat stats. Trying to see what the greatest disparity was between Detroit and Chicago wrt 90 days. But it's too early for that now. Right now it's 0-7.

 

But while i was looking, the 1950s really caught my eye. Absolutely unbearable summers. I've always noted how we don't get the extreme heat of the 1930s-50s but I didn't realize how torrid the 1950s were in Chicago. 

 

Days of 90+

1952- 38

1953- 42

1954- 36

1955- 46

1956- 21

1959- 39

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10 minutes ago, michsnowfreak said:

I was browsing some Chicago heat stats. Trying to see what the greatest disparity was between Detroit and Chicago wrt 90 days. But it's too early for that now. Right now it's 0-7.

 

But while i was looking, the 1950s really caught my eye. Absolutely unbearable summers. I've always noted how we don't get the extreme heat of the 1930s-50s but I didn't realize how torrid the 1950s were in Chicago. 

 

Days of 90+

1952- 38

1953- 42

1954- 36

1955- 46

1956- 21

1959- 39

It hit 100 in all of those years as well, except for 1959.

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29 minutes ago, michsnowfreak said:

I was browsing some Chicago heat stats. Trying to see what the greatest disparity was between Detroit and Chicago wrt 90 days. But it's too early for that now. Right now it's 0-7.

 

But while i was looking, the 1950s really caught my eye. Absolutely unbearable summers. I've always noted how we don't get the extreme heat of the 1930s-50s but I didn't realize how torrid the 1950s were in Chicago. 

 

Days of 90+

1952- 38

1953- 42

1954- 36

1955- 46

1956- 21

1959- 39

I found your answer.  There was a disparity of 22 days in 3 different years.

1953:

Chicago 90+:  42 days

Detroit 90+:  20 days

 

1975:

Chicago 90+:  26 days

Detroit 90+:  4 days

 

1980:

Chicago 90+:  27 days

Detroit 90+:  5 days

 

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8 hours ago, Hoosier said:

I found your answer.  There was a disparity of 22 days in 3 different years.

1953:

Chicago 90+:  42 days

Detroit 90+:  20 days

 

1975:

Chicago 90+:  26 days

Detroit 90+:  4 days

 

1980:

Chicago 90+:  27 days

Detroit 90+:  5 days

 

Thanks! Surprised it really has happened that many times. Chicago does average more though (16 to 12).

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10 hours ago, Hoosier said:

I found your answer.  There was a disparity of 22 days in 3 different years.

1953:

Chicago 90+:  42 days

Detroit 90+:  20 days

 

1975:

Chicago 90+:  26 days

Detroit 90+:  4 days

 

1980:

Chicago 90+:  27 days

Detroit 90+:  5 days

 

Since 1874, Detroit has only beat Chicago in 90F+ days 27 out of the 147 years.

 

Here is a look at the annual average each decade.

DETROIT VS CHICAGO: AVG ANNUAL # OF 90F+ DAYS PER DECADE

  •                      DETROIT           CHICAGO
  • 1880s-   5      5

  • 1890s-   9     11

  • 1900s-   6      9

  • 1910s-  11     14

  • 1920s-   9     13 

  • 1930s-  17     19

  • 1940s-  16     23

  • 1950s-  15     28

  • 1960s-  11     19

  • 1970s-  12     21

  • 1980s-  13     22

  • 1990s-  12     16

  • 2000s-  10     13    

  • 2010s-  16     19
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Through the 12th, ORD is running +8.8.  From a departure standpoint, this looks like it will be the peak temperature departure, given the look of the upcoming pattern and daily averages that are still rising.  If the 13th-30th merely comes in as average, then June would still finish in the warmest top 10.  The pattern in the extended does not look particularly cool on the whole, so I'd say there's a very good chance to finish among the top 10 warmest, with some chance of getting into the top 5.

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