What Is the Probability of Getting 5 Sundays in December?

Learn how to calculate the probability of having 5 Sundays in December based on which weekday December 1st falls on.

405 views

The probability of getting 5 Sundays in December depends on the day of the week December 1st falls on. If December 1st is a Sunday, Monday, or Tuesday, it'll have 5 Sundays. Therefore, the probability is 3 out of 7 days, which breaks down to approximately 42.86%.

FAQs & Answers

  1. How often does December have 5 Sundays? December has 5 Sundays approximately 42.86% of the time, which is when December 1st falls on a Sunday, Monday, or Tuesday.
  2. Why does the day December 1st falls on affect the number of Sundays? The starting weekday of December determines how the dates fall across the weeks. If December 1st is early in the week, there’s enough days to fit 5 Sundays.
  3. Can other months have 5 Sundays too? Yes, any month with 31 days can have 5 Sundays depending on which weekday it starts.

Watch More

For more insights into calendar-related probabilities and date calculations, check out our videos on the likelihood of leap years, the number of Fridays in a month, and how to calculate weekdays in any given month.

  1. What Is the Probability of Having 5 Sundays in a Month? Discover how often months with 5 Sundays occur and which months can have this rare event. Understand the probability behind it.
  2. What Is the Probability of Getting 5 Sundays in a 31-Day Month? Learn how to calculate the probability of having 5 Sundays in a 31-day month and what calendar start days affect this frequency.