Oops, it doesn't look like 'weather service has issued an excessive heat warning for inland orange county starting day' is a national day..

Other days

Bounce Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Tell Ur Crush You Like Them Day

Frozen Yogurt Day

Girl Friend Day

Cursing Day

Me Day

Polyamory Day

Hot Chocolate Day

Mean Girls Day