National days in September
121 days. Dates are for the next time each one comes around.
September 1
September 2
September 3
September 4
September 5
September 6
September 7
September 8
September 9
September 10
September 11
September 12
- National Grandparents Day
- National Chocolate Milkshake Day
- National Video Game Day
- National Day of Encouragement
September 13
- National Peanut Day
- International Chocolate Day
- Uncle Sam Day
- Kids Take Over the Kitchen Day
- Positive Thinking Day
September 14
September 15
- National Double Cheeseburger Day
- National Linguine Day
- National Cheese Toast Day
- National Crème de Menthe Day
- Make a Hat Day
September 16
- National Guacamole Day
- National Play-Doh Day
- National Cinnamon-Raisin Bread Day
- Collect Rocks Day
- Mayflower Day
September 17
- National POW/MIA Recognition Day
- Constitution Day and Citizenship Day
- National Apple Dumpling Day
- National Monte Cristo Day
- National Pet Bird Day
- National Table Shuffleboard Day
September 18
- U.S. Air Force Birthday
- National Cheeseburger Day
- National Dance Day
- First Love Day
- Locate an Old Friend Day
September 19
September 20
- National Punch Day
- National Queso Day
- National Fried Rice Day
- National Rum Punch Day
- National String Cheese Day
September 21
September 22
- National Ice Cream Cone Day
- Elephant Appreciation Day
- Hobbit Day
- National White Chocolate Day
- Dear Diary Day
September 23
- National Great American Pot Pie Day
- National Checkers Day
- First Day of Fall
- Go With Your Gut Day
- National Snack Stick Day
September 24
September 25
- National Lobster Day
- National Quesadilla Day
- National Comic Book Day
- National Public Lands Day
- National Cooking Day
- National One-Hit Wonder Day
- National Hunting and Fishing Day
September 26
- Gold Star Mother's and Family's Day
- National Dumpling Day
- National Better Breakfast Day
- National Key Lime Pie Day
- National Daughters Day
- Johnny Appleseed Day
- Lumberjack Day