Could it be so cold that people eat frozen food? “Top Ten Signs It’s Too Damn Cold (...) 3.  President Clinton chipped a tooth on a french fry” was broadcast on the New York City-based program Late Show with David Letterman on January 19, 1994.
 
“It was so cold…I chipped a tooth on my soup!” was printed on the Athropolis blog on December 4, 2003. “It’s soooo cold…I chipped a tooth on my soup!” was posted on the newsgroup Google Groups: alt.jokes on January 16, 2007.
 
       
Late Show Top Ten
Top Ten Signs It’s Too Damn Cold - January 19, 1994
(...)
3.  President Clinton chipped a tooth on a french fry.
     
Athropolis (December 4, 2003)
It was so cold…
(...)
5. It was so cold . . .
I chipped a tooth on my soup!
 
The QBlog
MONDAY, JANUARY 02, 2006
Funny Sayings about Cold
(...)
56. It was so cold I chipped a tooth on my soup.
 
Google Groups: alt.jokes
So Cold Jokes
John
1/16/07
It’s soooo cold…
(...)
I chipped a tooth on my soup!
 
Google Books
Uzzah a Novel
By Mel Meadows
Lulu Press (Lulu.com)
2009
Pg 361:
“We t-tough city b-boys know cold. Once it was so cold we looked for cheap greasy spoon restaurants to eat in just so we could get heart-burn. I had to stop eatin’ though cause I chipped my tooth on the soup.”
 
Twitter
Adam Gottlieb‏
@duelfish13
The office is so cold today… I chipped a tooth on my soup! #thecoldoffice
10:12 AM - 16 Sep 2009
     
Google Books
A Man Walks Into a Bar 3
By Jonathan Swan
London, UK: Ebury Press
2010
Pg. 377:
It was so cold l chipped a tooth on my soup!
     
tWITTER
Luca_de_Monte_Carlo‏
@LarnacaLad
It’s so cold…I just chipped my tooth on my soup!
6:15 AM - 9 Jan 2010
 
19 November 2010, Calgary (Alberta) Herald, “Welcome to West Icicle Bowl 2010” by George Johnson, pg. E1:
The list of Henny Young-man-calibre ‘It’s so Cold . . .’ one-liners is, of course, longer than a northern Saskatchewan winter:
 
It’s so cold we had to chisel the dog off a lamppost . . . It’s so cold I chipped a tooth on my soup.
     
8 January 2014, The Daily Journal (Franklin, IN), “Near-record temps generate thoughts of personal bests” by Norman Knight, pg. A4, col. 2:
Brr, it’s cold. How cold is it? It’s so cold I chipped my tooth eating soup.
 
9 January 2015, Telegraph-Journal (Saint John, New Brunswick), “Cold warning extended” by John Chilibeck, pg. A3:
It’s the kind of bitter cold that inspires the joke, “I chipped my tooth on my soup.”
   
Google Groups: The Grif.net
01/13/17 Grif.Net - It was so Cold . . .
Dr. Bob
1/13/17
It Was So Cold that . . .
(...)
. . . my friend chipped a tooth on his soup
 
106.5 WYRK (Buffalo, NY)
10 FAVORITE ‘IT’S SO COLD’ JOKES
WENDY LYNN January 3, 2018
(...)
IT’S SO COLD…...
(...)
8. I chipped my tooth on my soup