Much ado about nothing. You know which month they mean.
My mother (rest in peace), a reasonably well educated woman, could not properly pronounce "poor"...she always pronounced it as the sound made by a contented cat.
My wife, also well educated, cannot properly pronounce "wolf" (as in the animal or Blitzer); it always comes out "woof".
But my favorite all-time story about mispronunciation goes back to when I was in high school. My buddy's mom could not pronounce "al-loo-mi-num", always asking for, say, "aloonium foil". One time her son corrected her for the umpteenth time and she, in frustration, blurted, "Goddam it, Raymond, you know I can't say al-loo-mi-num!" And to my knowledge she never ever did again.
Bruce, add me to your list of "hw" speakers.