National Hat Day is January 15; but there is also an International Hat
Day, Red Hat Day, Felt Hat Day, Silly Hat Day and hat days celebrated in
Australia and elsewhere.
The biggest hat sales occur for these holidays: St. Patrick's Day,
Independence Day, New Year's, Christmas, Easter.
Over 1 million hats are worn at California beaches on the most
popular beach days of the year. The hats range from ball caps and sun
hats to straw lifeguard style hats.
Events are not guaranteed. It is your responsibility to confirm before going.