“It always rains at the end of a long dry spell” (weather joke)

Some parts of Texas don’t get much rain. “It always rains at the end of a long dry spell” is a Texas weather joke from at least 1909.
 
 
5 March 1909, Fort Worth (TX) Star-Telegram, “A Pleasant Hour With Our Texas Exchanges,” pg. 8;
State Press has no prophetic license, but he is willing to go on record with the prediction that it will rain throughout West, East, South and North Texas inside of ninety days, more or less.—State Press.
 
“Ninety days, more or less.” That’s nearly as safe as to say that it “always rains at the end of every dry spell.”
 
23 September 1909, Laurel (MS)

, pg. 8, col. 5:
It always rains at the end of a dry spell.     
 
11 October 1930, Circleville (OH) Herald, pg. 3, col. 3:
It always rains hardest after a long dry spell. 
 
14 September 1936, Van Nuys (CA) News, pg.
The oldest settler will tell you with pride in his beloved state that in Kansas it always rains at the end of a dry spell. 
 
16 April 1966, Albuquerque (NM) Tribune, pg. A4, col. 4:
You people who are getting impatient for rain can be assured that it always rains here after a long dry spell.   
   
21 September 1972, Commerce (TX) Journal, pg. B7, col. 2:
Maybe it will rain in time to sow turnips, if it is a little late, well it always rains at the end of a dry spell so don’t worry, it will rain some time, it always has. 

15 July 1974, Tucson Daily Citizen, pg. 3, col. 1:
JOE CUSHMAN, of 122 E. Ajo Way, wasn’t worried about that long drought we had.
 
All through those long, dry weeks, the old Texas saying kept going through his mind:
 
“Don’t fret. It always rains at the end of a long dry spell.”
   
Amazon.com
It Always Rains After a Dry Spell (Paperback)
by Marshall Trimble (Author)
Paperback
Publisher: World Pub Corp; 2nd Rev edition (June 1999)
Language: English