Oops, it doesn't look like 'Post A Picture Of Your Avocado day' is a national day..

Other days

Raise Awerness Of Zeus Day

Latina Equal Pay Day

Kiss A Brunette Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Nail Polish Day

China Day

Ponytail Day

Bubble Bath Day

Fiancee Day

Tulip Day