Oops, it doesn't look like 'average for a gallon of regular gas rose in one day' is a national day..

Other days

Embarrass Your Best Friend Day

Bow Tie Day

Martini Day

Emoji Day

Appreciate Yaself A Lil Extra Day

Lumpy Rug Day

Promposal Day

Prosecco Day

Raise Awerness Of Zeus Day

Nae Nae Day