What Is the Probability of Having 5 Sundays in December?

Learn why the probability of 5 Sundays in December is 1 in 7 years and how to check if a December will have 5 Sundays.

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The probability of having 5 Sundays in December is 1 in 7 years. This occurs when December 1st falls on a Sunday, meaning the month has Sundays on the 1st, 8th, 15th, 22nd, and 29th. To determine if a given December will have 5 Sundays, check the day of the week for December 1st.

FAQs & Answers

  1. How often does December have 5 Sundays? December has 5 Sundays once every 7 years when December 1st falls on a Sunday.
  2. Which day must December 1st fall on for 5 Sundays to occur? December 1st must be a Sunday for the month to contain 5 Sundays.
  3. Can other months have 5 Sundays as well? Yes, months with 31 days can have 5 Sundays if the month starts on certain days of the week.

Watch More

For more insights into calendar curiosities and probability questions, check out our related videos on how the calendar affects monthly and yearly date patterns, including leap years and months with extra weekends.

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