These are the major holidays most of the country celebrates. These are the big ones. 

• New Year’s Day - January 1st
• Martin Luther King Jr Day - 3rd Monday of January
• Presidents’ Day - 3rd Monday of February
• Memorial Day - Last Monday of May
• Juneteenth - June 19th
• Independence Day - July 4th
• Labor Day - 1st Monday of September
• Columbus Day - 2nd Monday of October
• Veterans Day - November 11th
• Thanksgiving Day - 4th Thursday of November
• Christmas Day - December 25th
• New Year’s Eve - December 31st

This is the start of a new year, so your marketing can tap into the mood of people starting new, looking to improve their health, thinking about New Year’s Resolutions.

1. New Year’s Day
2. National Science Fiction Day
3. Sleep Day
4. Trivia Day
5. National Bird Day
6. National Technology Day
7. Orthodox Christmas Day
8. World Literary Day
9. National Take the Stairs Day
10. Houseplant Appreciation Day
11. International Thank You Day
12. Work Harder Day
13. National Sticker Day
14. Organize Your Home Day
15. Hat Day
16. National Nothing Day
17. Customer Service Day
18. National Gourmet Coffee Day
19. Good Memory Day
20. National Cheese Lovers Day
21. International Sweatpants Day
22. National Hot Sauce Day
23. National Pie Day
24. National Compliment Day
25. Opposite Day
26. Spouse’s Day
27. Holocaust Memorial Day
28. International Lego Day
29. National Puzzle Day
30. National Croissant Day
31. National Hot Chocolate Day

In February, the novelty of the new year wears off for most people and they’re back into their regular routines. It includes Valentine’s Day, which many companies stretch into a multi-day, multi-week, and even full month of romantic promotions.

1. Spunky Old Broads Day
2. Self Renewal Day
3. National Carrot Day
4. World Cancer Day
5. World Nutella Day
6. National Chopsticks Day
7. Ballet Day
8. National Kite Flying Day
9. National Pizza Day
10. Teddy Day
11. National Make a Friend Day
12. Darwin Day
13. National Wingman Day
14. Valentine’s Day
15. Susan B. Anthony Day
16. Innovation Day
17. Random Acts of Kindness Day
18. Drink Wine Day
19. International Tug-of-War Day
20. Love Your Pet Day
21. Card Reading Day
22. Walking the Dog Day
23. Tootsie Roll Day
24. World Bartender Day
25. Let’s All Eat Right Day
26. Carpe Diem Day
27. World NGO Day
28. National Science Day
29. Superman’s Birthday

March is the last month of Q1. St. Patrick’s Day is probably the biggest holiday of the month, but Spring Break usually happens in March too. 

1. National Pig Day
2. International Rescue Cat Day
3. I Want You To Be Happy Day
4. National Snack Day
5. World Tennis Day
6. National Day of Unplugging
7. World Math Day
8. Girls Write Now Day
9. National Meatball Day
10. International Day of Awesomeness 
11. Dream Day
12. Plant a Flower Day
13. National Jewel Day
14. National Pi Day
15. National Peanut Lovers Day
16. National Panda Day
17. St. Patrick’s Day
18. National Awkward Moments Day
19. Certified Nurses Day
20. Extraterrestrial Abduction Day
21. National Crunchy Taco Day
22. National Water Day
23. Cuddly Kitten Day
24. National Cocktail Day
25. International Waffle Day
26. Make Up Your Own Holiday Day
27. National Scribble Day
28. National Hot Tub Day
29. National Mom and Pop Business Owners Day
30. National Doctors Day
31. Dance Marathon Day

April starts and ends with two fun holidays that you can do a lot with - April Fool’s Day (4/1) and Earth Day (4/22). It’s a great chance to encourage your customers to have fun and get outside. 
 

1. April Fool’s Day
2. National Children’s Book Day
3. World Party Day
4. Tell a Lie Day
5. Go For Broke Day
6. Army Day
7. National Beer Day
8. Zoo Lovers Day
9. National Unicorn Day
10. National Farm Animals Day
11. National Pet Day
12. Grilled Cheese Sandwich Day
13. Plant Appreciation Day
14. Dictionary Day
15. Anime Day
16. Save the Elephant Day
17. National Kickball Day
18. Pinata Day
19. Pet Owners Day
20. Look Alike Day
21. National Tea Day
22. Mother Earth Day
23. Take a Chance Day
24. New Kids on the Block Day
25. International Financial Independence Awareness Day
26. Alien Day
27. World Design Day
28. National Superhero Day
29. World Wish Day
30. Hairstyle Appreciation Day

May’s biggest holiday is Memorial Day (last Monday of the month) and also includes Cinco de Mayo. It’s typically one of the slower months in terms of special days. 

1. Batman Day
2. International Harry Potter Day
3. Paranormal Day
4. Star Wars Day
5. Cinco de Mayo
6. International No Diet Day
7. National Tourism Day
8. National Give Someone A Cupcake Day
9. Lost Sock Memorial Day
10. National Small Business Day
11. Eat What You Want Day
12. Limerick Day
13. Top Gun Day
14. National Chicken Dance Day
15. National Chocolate Chip Day
16. International Pickle Day
17. National Telecommunication Day
18. World Aids Vaccine Day
19. Malcolm X Day
20. World Bee Day
21. National Waiter and Waitresses Day
22. World Goth Day
23. Lucky Penny Day
24. Scavenger Hunt Day
25. Geek Pride Day
26. National Paper Airplane Day
27. Nothing to Fear Day
28. International Hamburger Day
29. Paper Clip Day
30. National Creativity Day
31. National Smile Day

June is the start of summer for many people. Kids are wrapping up the school year and families go on vacation, so this is a great time for summer sales. 

1. Say Something Nice Day
2. National Rotisserie Chicken Day
3. Love Conquers All Day
4. National Cheese Day
5. Hot Air Balloon Day
6. Drive in Movie Day
7. Daniel Boone Day
8. Best Friends Day
9. Donald Duck Day
10. National Iced Tea Day
11. Corn on the Cob Day
12. National Jerky Day
13. Weed Your Garden Day
14. World Blood Donor Day
15. Worldwide Day of Giving
16. National Fudge Day
17. Eat All Your Veggies Day
18. Go Fishing Day
19. Juneteenth
20. World Productivity Day
21. National Selfie Day
22. World Rainforest Day
23. Public Service Day
24. Midsummer Day
25. Anthony Bourdain Day
26. Forgiveness Day
27. Sunglasses Day
28. Insurance Awareness Day
29. National Camera Day
30. Meteor Day

This is halfway through the year, a time when you can revisit your New Year’s Resolutions, and have people prepare for Q4. 

1. International Joke Day
2. Made in the USA Day
3. Compliment Your Mirror Day
4. National Barbeque Day
5. National Workaholics Day
6. National Fried Chicken Day
7. Tell the Truth Day
8. Be a Kid Again Day
9. Fashion Day
10. International Nikola Tesla Day
11. National Mojito Day
12. Simplicity Day
13. International Rock Day
14. National Mac and Cheese Day
15. Be a Dork Day
16. Hot Dog Night
17. World Emoji Day
18. World Listening Day
19. New Friends Day
20. Nap Day
21. National Junk Food Day
22. Mango Day
23. Gorgeous Grandma Day
24. Tell an Old Joke Day
25. National Hot Fudge Sunday Day
26. Aunts and Uncles Day
27. National Scotch Day
28. National Waterpark Day
29. National Lasagna Day
30. Paperback Book Day
31. Mutt’s Day

This is usually when people are coming back from summer vacations. There’s not much in the way of big holidays, but you can still find relevant ways to welcome people back to normal life. Back-to-school sales usually start in August. 

1. Spiderman Day
2. Dinosaurs Day
3. National Watermelon Day
4. Single Working Woman’s Day
5. National Underwear Day
6. Wiggle Your Toes Day
7. Professional Speakers Day
8. Bullet Journal Day
9. International Coworking Day
10. International Vlogging Day
11. National Hip Hop Day
12. Vinyl Record Day
13. International Lefthander’s Day
14. National Financial Awareness Day
15. National Failures Day
16. National Roller Coaster Day
17. National Non-Profit Day
18. Never Give Up Day
19. Potato Day
20. Virtual Worlds Day
21. Senior Citizens Day
22. Never Been Better Day
23. Hug Your Sweetheart Day
24. Shooting Star Day
25. National Park Service Day
26. Women’s Equality Day
27. World Rock Paper Scissors Day
28. Dream Day
29. Chop Suey Day
30. Frankenstein Day
31. Eat Outside Day

This is back to school month in most places, from kindergarten through to universities. It’s also usually the beginning of football season and the end of baseball season, so it’s a great chance to work sports and school into your promotions. 

1. World Letter Writing Day
2. World Coconut Day
3. National Skyscraper Day
4. National Wildlife Day
5. International Day of Charity
6. Read a Book Day
7. Google Commemoration Day
8. Star Trek Day
9. International Sudoku Day
10. International Makeup Day
11. National Emergency Responder Day
12. Video Games Day
13. Fortune Cookie Day
14. National Sober Day
15. Google Day
16. National Guacamole Day
17. International Country Music Day
18. International Read an eBook Day
19. Talk Like a Pirate Day
20. National Pepperoni Pizza Day
21. World Gratitude Day
22. World Car Free Day
23. International Day of Sign Languages
24. National Bluebird of Happiness Day
25. National Cooking Day
26. National Pancake Day
27. World’s Tourism Day
28. National Good Neighbor Day
29. Confucius Day
30. International Podcast Day

October is the beginning of Q4, which is biggest sales period in the US. The unofficial starting point for the most intense sales is Halloween, which is a huge event by itself. Some companies start their Black Friday sales as early as the end of October. 

1. World Vegetarian Day
2. National Name Your Car Day
3. Techie’s Day
4. Improve Your Office Day
5. National Storytelling Day
6. National Coaches Day
7. LED Light Day
8. National Children’s Day
9. National Sneakers Day
10. National Metric Day
11. National Food Truck Day
12. National Savings Day
13. International Plain Language Day
14. National Lowercase Day
15. Global Handwashing Day
16. World Spine Day
17. National Pasta Day
18. National No Beard Day
19. Evaluate Your Life Day
20. International Sloth Day
21. Back to the Future Day
22. Clean Up the Earth Day
23. Mole Day
24. United Nations Day
25. International Artists Day
26. National Pumpkin Day
27. Navy Day
28. National First Responders Day
29. National Oatmeal Day
30. National Publicist Day
31. Halloween

November is one of the busiest periods for sellers. Many buyers are preparing for Christmas and others just want to take advantage of the biggest sale of the year - Black Friday. This is the Friday after Thanksgiving and most companies extend their sales through the following Monday (“Cyber Monday”). 

1. National Authors Day
2. National Deviled Egg Day
3. National Sandwich Day
4. National Candy Day
5. National Donut Day
6. National Nachos Day
7. National STEM Day
8. National Parents as Teachers Day
9. National Freedom Day
10. National Accounting Day
11. Veterans Day
12. National Happy Hour Day
13. World Kindness Day
14. National Seat Belt Day
15. America Recycles Day
16. National Button Day
17. National Take a Hike Day
18. National Princess Day
19. Gettysburg Address Anniversary
20. National Absurdity Day
21. National Gingerbread Cookie Day
22. Humane Society Anniversary Day
23. National Espresso Day 
24. National Jukebox Day
25. National Play Day With Dad
26. National Cake Day
27. Turtle Adoption Day
28. Red Planet Day
29. National Day of Giving
30. National Personal Space Day

December can be a tricky, but it’s still a great time to sell. The big holidays are Christmas and New Year’s, but it’s also a month when many people take a week or two off of work and go on vacation. 

1. Rosa Parks Day
2. Special Education Day
3. National Roof Over Your Head Day
4. National Sock Day
5. International Ninja Day
6. St. Nicholas Day
7. National Letter Writing Day
8. National Brownie Day
9. National Pastry Day
10. Nobel Prize Day
11. National App Day
12. Worldwide Candle Lighting Day
13. National Ice Cream Day
14. National Free Shipping Day
15. National Cupcake Day
16. National Underdog Day
17. Wright Brothers Day
18. National Twin Day
19. National Emo Day
20. Games Day
21. Crossword Puzzle Day
22. National Short Person Day
23. Festivus
24. Christmas Eve
25. Christmas    
26. Boxing Day
27. Visit the Zoo Day
28. National Card Playing Day
29. Tick Tock Day
30. Bacon Day
31. New Year’s Eve

Different industries will have different “high sales seasons.” Let’s take a look at a few. 

Real Estate / Housing:
Moving Season is generally in the summer months, and most people buy or rent homes in this time frame. 

Source

Retail Seasonal Patterns:
Everyone knows Q4 is a huge time for retailers, as they do sales and promotions to meet the high demands of the holiday season. Here’s the patterns for retail:

Source

Most general businesses:
A huge spike happens in Q4 for many businesses, as companies and government agencies need to use their remaining budgets. Also a huge holiday season causes consumers to buy more items for themselves, parties, and gifts. 

Major Holidays:
While there’s a “holiday” almost every day of the year, here are the major holidays celebrated in the U.S.