#8: How Common Is Your Birth Date?
It’s weird to think that some birthdates are more common than others because it seems so random. While this doesn’t explain what makes some dates more common than others, we can learn other things by looking at this chart. The least common birthdays are shaded in white and the most in dark brown.
Apparently, compared to other months, January is a very unpopular month to have babies! Not many people are born in January; we wonder why that is. On the other hand, the darkest regions of the chart are around July, August, or September, so if you were born in one of these months, you have a pretty common birthdate.