Just from looking at these dates and cross-referencing them with the day of the week and major holidays, it would seem the following is true:

• Weekends (including Friday) are more popular.

• People are superstitious and do not like the 13th of any month lol.

• Mid August - August 18th in particular - looks to be the most popular, but so do other weekends in August. (Again, excluding the 13th lol.) Summer months in general are popular.

• Some people really like getting married on Valentines Day, but not the rest of February or the cold months in general.

• Very few couples want to get married on Christmas Eve, Christmas Day, and New Year’s Day. However, New Year’s Eve seems to be slightly above-average for December.

Altogether, not too surprising, but interesting nonetheless.