September 4 National Day Calendar with a complete list of National Days in September and on the day September 4th. NEWSPAPER CARRIER DAY NATIONAL MACADAMIA NUT DAY BRIGHT IDEA DAY [131ST ANNIVERSARY] National Biscuit Month Better Breakfast Month National Chicken Month National Cholesterol Education Month National Honey Month National Mushroom Month National Organic Harvest Month National Papaya Month National Potato Month National Rice Month National Waffle Week First Week Biscuit and Gravy Week Second Week Vegetarian Awareness Week Second Week National Wild Rice Week Fourth Week