Oops, it doesn't look like 'weather service is forecasting cold temperatures and wind chills for all day' is a national day..

Other days

Nae Nae Day

Tell Ur Crush You Like Them Day

Blanket Fort Day

Kiss A Ginger Day

Polyamory Day

Gum Day

Bubble Bath Day

Latina Equal Pay Day

Hoodie Day

My Little Pony Day