| August 1 |
National Girlfriends Day, National Raspberry Cream Pie Day, National Water Balloon Day
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| August 2 |
National Coloring Book Day, National Ice Cream Sandwich Day |
| August 3 |
National Watermelon Day |
| August 4 |
National Chocolate Chip Cookie Day, National Coast Guard Day |
| August 5 |
National Work Like A Dog Day, National Oyster Day |
| August 6 |
National Root Beer Float Day, National Fresh Breath Day |
| August 7 |
Purple Heart Day, National Lighthouse Day, National Raspberries n’ Cream Day |
| August 8 |
International Cat Day, National Dollar Day |
| August 9 |
National Book Lovers Day |
| August 10 |
National Lazy Day, National S’mores Day |
| August 11 |
National Son’s and Daughter’s Day |
| August 12 |
National Middle Child Day, International Youth Day |
| August 13 |
National Left-Handers Day, National Filet Mignon Day |
| August 14 |
National Creamsicle Day |
| August 15 |
National Relaxation Day, National Lemon Meringue Pie Day |
| August 16 |
National Tell A Joke Day, National Roller Coaster Day |
| August 17 |
National Thrift Shop Day, National Nonprofit Day |
| August 18 |
National Fajita Day, National Mail Order Catalog Day |
| August 19 |
National Aviation Day, National Potato Day |
| August 20 |
National Radio Day, National Chocolate Pecan Pie Day |
| August 21 |
National Senior Citizens Day, National Spumoni Day |
| August 22 |
National Tooth Fairy Day, National Bao Day, Be an Angel Day |
| August 23 |
National Ride the Wind Day, National Sponge Cake Day |
| August 24 |
National Waffle Day, National Peach Pie Day |
| August 25 |
National Banana Split Day, National Kiss and Make Up Day |
| August 26 |
National Dog Day, Women’s Equality Day |
| August 27 |
National Just Because Day |
| August 28 |
National Red Wine Day, National Power Rangers Day, National Bow Tie Day |
| August 29 |
National Lemon Juice Day, National Chop Suey Day |
| August 30 |
National Toasted Marshmallow Day, National Grief Awareness Day |
| August 31 |
National Trail Mix Day, Eat Outside Day |
