National Grouch Day: October 15

National Grouch Day: October 15 — History & How to Celebrate

National Grouch Day is celebrated every year on October 15th, giving everyone full permission to complain, grumble, and embrace their inner curmudgeon without judgment.

History of National Grouch Day

National Grouch Day has two competing origin stories, both tied to the same date. According to Chase’s Calendar of Events, the holiday began as a practical joke created by a sixth-grade student named Monica Moeller, who dedicated the day to her particularly grouchy teacher, Mr. Miller, whose birthday happened to fall on October 15th. Mr. Miller was even given the honorary title of President and Chairman of N.A.G., the “National Association of Grouches,” and reportedly received grouchy-themed letters from around the world in the years that followed.

Coincidentally, October 15th also marks the debut of Oscar the Grouch on Sesame Street in 1969, one of television’s most iconic and beloved grumps. Because of this shared date, Oscar the Grouch has become closely associated with the holiday over the years, even though the two origins developed independently of one another.

How to Celebrate National Grouch Day

  • Let out a complaint or two you’ve been holding in, just for the fun of it
  • Watch a movie featuring a classic grouchy character, like Oscar the Grouch or the Grinch
  • Share your biggest pet peeve using #NationalGrouchDay
  • Give yourself permission to have an off day without guilt
  • Send a lighthearted “grouch” card to a friend who’s always in a good mood

Fun Facts About National Grouch Day

  1. One origin story credits sixth grader Monica Moeller with creating the holiday as a practical joke honoring her grouchy teacher’s birthday.
  2. The same date, October 15, 1969, marks Oscar the Grouch’s debut on Sesame Street.
  3. Monica Moeller later went on to found another lighthearted observance, National Goof Off Day.
  4. Psychologists note that allowing yourself to acknowledge a bad mood, rather than suppressing it, can actually be healthier than forcing positivity.
  5. Oscar the Grouch famously lives in a trash can and prefers things that most people consider unpleasant.

Frequently Asked Questions

When is National Grouch Day?

National Grouch Day is celebrated annually on October 15th.

Who started National Grouch Day?

One well-documented origin credits sixth grader Monica Moeller, who created the day as a practical joke honoring her particularly grouchy teacher. The date also coincidentally marks Oscar the Grouch’s 1969 debut on Sesame Street.

Is National Grouch Day about Oscar the Grouch?

While Oscar the Grouch has become closely associated with the day due to the shared October 15th date, the holiday’s documented origin is actually tied to a separate story involving a real-life grouchy teacher.