TEN! holidays you should know.
Note: Thanks to LB for contributing today's challenge
There are 365 in a year, well, 3/4 of the time there is. And while your workplace may only recognize a handful of official holidays, in reality not a day goes by that something isn't celebrated.
Below are TEN! much less well known annual observances that commemorate a variety of different people, things, or just plain silliness. For each special day, name the month it is celebrated in each year. No month will be used more than once (Hint: Two months will not be used at all). Some of these days can't seem to make up their mind if they're "National", "International", or neither.... so I list them here by the most common name I found them as in my research....
I have also included an apropos ES avatar from the past for each entry to enhance your visual enjoyment of today's game. Woohoo!!!!1

1. Bathtub Party Day

2. Employee Appreciation Day

3. International Lefthanders Day

4. International Tuba Day

5. National Catfish Day

6. National Fried Chicken Day

7. National Squirrel Appreciation Day

8. National Weatherman's Day

9. Talk Like a Pirate Day

10. United States Marine Corps Day
No Points Bonus: Which denizen of this Bored shares a birthday with National Masturbation Day?