| 1- Dare Day |
| 1- Donut Day |
| 1- Oscar The Grouch's Birthday (Sesame Street) |
| 1- Queen Elizabeth's Birthday |
| 1- Stand For Children Day |
| 1- Marilyn Monroe's Birthday |
| 1- Cable News Network Birthday (CNN 1980) |
| 1- International Children's Day |
| 1- International Mothers' Peace Day |
| 1- National Family Day |
| 1- National Frozen Yogurt Day |
| 1- Superman's Birthday 1938 |
| 1- National Go Barefoot Day |
| 2- National Rocky Road Day |
| 2- Radio Patented in 1896 |
| 2- Dinosaur Day |
| 2- American Indian Citizenship Day |
| 2- National Frozen Yogurt Day |
| 2- 3 Ring Circus Day |
| 2- Leave the Office Early Day |
| 2- National Bubba Day |
| 3- Jefferson Davis Day |
| 3- Repeat Day |
| 3- National Cancer Survivors Day |
| 3- Egg Day |
| 3- Casey at the Bat Day (Poem written in 1888.) |
| 3- Tattoo Birthday 208 B.C. |
| 3- American Space Walk Day 1965 |
| 3- National Itch Day |
| 4- Born in the USA Day (Song released in 1984) |
| 4- Ford's Birthday |
| 4- Salesman's Day |
| 4- Old Maid's Day |
| 4- Capitol Records Birthday 1942 |
| 4- Cheese Day |
| 4- Radial Tire Birthday |
| 4- Shopping Cart Birthday (1937) |
| 4- Socrates's Birthday |
| 5- First Hot Air Balloon Flight 1783 |
| 5- National Gingerbread Day |
| 5- World Environment Day |
| 7- Richard Scarry Day |
| 7- Write to your Father Day |
| 5- National Attitude Day |
| 6- Be-Bop-a-Lula Day |
| 6- Chrysler Corporation Birthday |
| 6- D-Day Anniversary |
| 6- Drive-In Movie Theater Birthday |
| 6- National Yo-Yo Day |
| 6- Couple Appreciation Day |
| 6- First Drive in Movie 1933 |
| 6- National Applesauce Cake Day |
| 6- National Family Day |
| 6- Career Nurse Assistants Day |
| 6- YMCA Birthday |
| 7- June Bug Day |
| 7- Kim Possible Birthday |
| 7- National Cheer Coaches Day |
| 7- National Family Recreation Day |
| 7- Native American Appreciation Day |
| 7- VCR Birthday |
| 7- National Chocolate Ice Cream Day |
| 7- Freedom of the Press day |
| 7- The Amazing Mumford's Birthday (Sesame Street) |
| 8- Abused Women and Children Awareness Day |
| 8- Ghostbusters Birthday (1983) |
| 8- Gremlins Birthday (1983) |
| 8- Ice Cream USA Birthday (first sold commercially in 1786 in New York City.) |
| 8- Watch Day |
| 8- Frank Lloyd Wright's Birthday |
| 8- Oceans Day |
| 8- Stolen Car Day (The first stolen car was reported in 1896.) |
| 8- Vacuum Cleaner Birthday 1869 |
| 8- Washing Machine Patent Day 1824 |
| 8- Race Unity Day (Second Sunday in June) |
| 8- Children's Sunday (Second Sunday in June) |
| 8- Ice Cream USA Birthday 1786 |
| 8- Shoo Fly Day |
| 8- Best Friends Day |
| 8- Lassie's Birthday |
| 8- Donald Duck's Birthday |
| 9- Best Friends Day |
| 9- National Strawberry Rhubarb Pie Day |
| 9- Alcoholics Anonymous Birthday (1935) |
| 9- Senior Citizen's Day |
| 10- Ballpoint Pen's Birthday |
| 10- American Log Cabin Day |
| 10- Public Zoo Birthday (First in the world opened in Paris, France 1793) |
| 10- Tornado Birthday (First tornado ever recorded occurred near New Haven, Connecticut in 1682) |
| 10- Where the Wild Things Are Day, Author Maurice Sendak birthday |
| 10- Judy Garland's Birth Anniversary |
| 10- Alcoholics Anonymous: Founding Anniversary |
| 11- Franklin Stove Birthday |
| 11- Great Barrier Reef Discovery Day |
| 11- National Hug Holiday |
| 12- National Taco Day |
| 12- The Baseball was invented 1839 |
| 12- Machine Day |
| 12- Red Rose Day |
| 12- Magic Day |
| 12- Gas Mask Birthday |
| 12- Little League Girls Baseball Day (Girls were first allowed to play Little League baseball on this date in 1974.) |
| 13- Mary Kate & Ashley Olsen's B'day |
| 13- National Marriage Day (second Friday in June) |
| 13- Kitchen Klutzes Of America Day |
| 13- Weed Your Garden Day |
| 13- Lobster Day |
| 14- Blood Type Awareness Day |
| 14- Blue's Clues Birthday |
| 14- International Peace Prayer Day |
| 14- Family History Day |
| 14- Caldecott Metal First Awarded |
| 14- Flag Day |
| 14- "Pop Goes the Weasel" Day |
| 14- One Nation Under God Day (In 1954, president Dwight D. Eisenhower signed an order adding the words "under God" to the Pledge of Allegiance.) |
| 14- Sandpaper Invented Invented by I. Fischer Jr. in 1834 |
| 14- National Congratulate Your Cop Day |
| 14- Anniversary of the Creation of the United States Army |
| 14- Pig Callers Day |
| 15- National Electricity Day |
| 15- Go Fly a Kite Day |
| 15- New Jersey Founding Day 1664 |
| 15- Ben Franklin's Kite Experiment 1752 |
| 15- Power of a Smile Day |
| 15- Cork Baseball Birthday (1909) |
| 15- Ride to Work Day (Motorcycles) |
| 15- Friend In Need Day |
| 16- National Fudge Day |
| 16- National Hollerin' Contest Day |
| 16- Cracker Jacks Birthday 1893 |
| 16- Fresh Veggies Day |
| 16- Helicopter's Birthday 1922 |
| 16- Lady and the Tramp Birthday 1955 |
| 16- No Orange Clothes Day (In 1784, Holland forbad the wearing of orange clothes.) |
| 16- Pepsi Cola Company Birthday 1903 |
| 16- Roller Coaster Birthday 1884 |
| 17- Bake Your Own Bread Day |
| 17- Disneyland Opened 1955 |
| 17- Father's Day |
| 17- Eat Your Vegetables Day |
| 17- Mud Pack Day |
| 18- Amusement Pier Birthday 1898 |
| 18- Go Fishing Day |
| 18- Hawaii Macademia Nut Day |
| 18- National Splurge Day |
| 18- International Picnic Day |
| 18- National Splurge Day |
| 18- Children's Carriage Birthday 1889 |
| 18- Recess at Work Day |
| 19- Tasmanian Devil's Birthday |
| 19- Garfield's Birthday |
| 19- Juneteenth |
| 19- Casual Day (On the Friday before the summer solstice) |
| 19- Eat an Oreo Day |
| 20- Bald Eagle Day |
| 20- World Juggling Day |
| 20- Ice Cream Soda Day |
| 20- National Juggling Day |
| 20- Krazy Kat's Birthday 1910 |
| 20- Plain Yogurt Day |
| 20- World Sauntering Day |
| 20- Dick Tracy Day |
| 20- National Vanilla Milkshake Day |
| 21- Dr. Pepper's Birthday 1857 |
| 21- Ferris Wheel Birthday 1893 |
| 21- Lilo & Stitch's Birthday 2002 |
| 21- Summer Solstice |
| 21- Summer Begins |
| 21- Father's Day |
| 21- Cuckoo Warning Day |
| 22- National Chocolate Eclair Day |
| 22- Take your Dog to Work Day |
| 22- Dairy Queen Birthday 1940 |
| 22- Doughnuts Birthday 1847 |
| 22- Stupid Guy Thing Day |
| 23- Typewriter Patented in 1868 |
| 23- Mid-Summers Eve |
| 23- National Pink Day |
| 23- National Columnist's Day |
| 23- Let It Go Day |
| 23- Bullwhacker Day |
| 24- National Forgiveness Day |
| 24- U.F.O. Day |
| 24- Museum Comes To Life Day |
| 24- National Go Fly a Kite Day |
| 24- Swim a Lap Day |
| 24- The Lion King's Birthday 1994 |
| 25- LEON Day - LEON is NOEL spelled backwards. It means six months until Christmas. |
| 25- Eric Carle's Birthday Author |
| 25- Log Cabin Day |
| 25- Paddington Bear's Birthday 1958 |
| 25- Tennis Shoe Birthday 1947 |
| 26- Maria's Birthday (Sesame Street) |
| 26- Toothbrush invented 1498 |
| 26- Bicycle Patented In 1819 |
| 26- National Chocolate Pudding Day |
| 26- Bar Code Birthday 1974 |
| 26- Toothbrush Birthday 1498 |
| 26- Ugly Dog Day |
| 27- Sunglasses Day |
| 27- Captain Kangaroo's B'day (Bob Keeshan) |
| 27- Helen Keller's Birthday |
| 27- Special Recreation for Disabled Day |
| 27- Great American Picnic day (Last Saturday in June) |
| 27- Melody for the Song "Happy Birthday" written 1859 |
| 27- National Orange Blossom Day |
| 27- National Columnists Day |
| 27- Happy Birthday to You Day |
| 28- Paul Bunyan Day |
| 28- Let It Go Day (whatever has been bothering your, let it go!) |
| 28- World War 1 Commemoration |
| 29- No Longer Plain M&Ms Day (In 2000, M&M/Mars renamed their plain M&Ms as milk chocolate M&Ms.) |
| 29- America's Kids Day (Last Sunday in June) |
| 29- National Ducks & Wetlands Day |
| 29- Camera Day |
| 29- Please Take My Children to Work Day |
| 30- Corvette's Birthday 1953 |
| 30- Meteor Day |
| 30- London Bridge Birthday 1894 |
| 30- Leap Second Adjustment Day |
