| April Fools' Day | Special Interest | Activities, Fun |
| Assyrian New Year | Religious | Cultural, Historical |
| Boomer Bonus Days | Fun | Appreciation, Awareness |
| Cyprus National Holiday | Federal | Civic, Historical |
| Edible Book Day | Special Interest | Books, Educational, Sweet Food |
| Education and Sharing Day | Special Interest | Awareness, Educational |
| Every Day is Tag Day | Fun | Awareness, Cat, Dog, Pet Health |
| Fossil Fools Day | Cause | Awareness, Environmental |
| International Firewalk Day | Cultural | Cultural Holidays |
| International Fun at Work Day | Fun | Career |
| International Pillow Fight Day | Fun | Crazy, International, Lifestyle |
| Library Snap Shot Day | Special Interest | Appreciation, Books |
| Lupus Alert Day | Health | Awareness, Diseases |
| Mathematics and Statistics Awareness Month | Special Interest | Appreciation, Careers, Educational |
| Myles Day | Arts & Entertainment | Appreciation, Books |
| National Connor Day | Fun | Appreciation |
| National Fun Day | Fun | Activities, American, Fun |
| National Greeting Card Day | Special Interest | Activities, Appreciation |
| National Handmade Day | Special Interest | Activities, Career, Hobby |
| National Love Our Children Day | Relationship | Children, Family, Love |
| National Loyal Day | Fun | Appreciation |
| National One Cent Day | Special Interest | American, Cultural, Historical |
| National Sourdough Bread Day | Food & Beverage | Baking, Food, Healthy Food |
| National Trombone Players Day | Arts & Entertainment | Appreciation, Music |
| Nickelodeon Anniversary Celebration Day | Arts & Entertainment | American, Brand, Children |
| Odisha Day | Cultural | Festivities, Historical, Indian Holidays |
| Reading is Funny Day | Arts & Entertainment | Books, Educational, Funny |
| St. Stupid Day | Fun | Activities, Festivities, Weird National |
| Take Down Tobacco National Day of Action | Health | Awareness, Lifestyle |
| Tatting Day | Arts & Entertainment | Activities, Fashion, Hobby |
| U.S. Air Force Academy Day | Federal | Federal, Military |
| U.S. Air Force Academy Day | Cause | American, Appreciation, Military |
| Be Kind to Spiders Week | Animal | Awareness, Pet |
| Golden Rule Week | Special Interest | Activities, International, Lifestyle |
| International Pooper Scooper Week | Animal | Awareness, Dog, Pet |
| Laugh at Work Week | Fun | Crazy, Funny |
| Medication Safety Week | Health | Awareness, Safety |
| National Robotics Week | Special Interest | Careers, Technology |
| Testicular Cancer Awareness Week | Health | Awareness, Diseases, Educational |
| Week of the Young Child | Special Interest | Appreciation, Children, Education, Educational |
| Adopt a Ferret Month | Animal | American, Pet |
| Arab American Heritage Month | Special Interest | Cultural |
| Autism Acceptance Month | Health | Awareness, Diseases |
| Bowel Cancer Awareness Month | Health | Awareness, Diseases |
| Brussels Sprouts and Cabbage Month | Food & Beverage | Food, Health, Healthy Food |
| Cancer Control Month | Cause | Awareness, Diseases, Health |
| Canine Fitness Month | Animal | Activities, Dog, Pet Health |
| Celebrate Diversity Month | Special Interest | Appreciation, Awareness, Educational |
| Cesarean Awareness Month | Health | Awareness, Women |
| Child Abuse Awareness Month | Cause | Awareness, Children, Educational |
| Children and Nature Awareness Month | Special Interest | Children, Educational, Environment, Family |
| Counseling Awareness Month | Special Interest | Awareness, Careers, Mental Health |
| Couple Appreciation Month | Relationship | Family, Love |
| Cranberries and Gooseberries Month | Food & Beverage | Appreciation, Fruit, Healthy Food |
| Defeat Diabetes Month | Health | Awareness, Diseases |
| Distracted Driving Awareness Month | Cause | Awareness |
| Dog Appreciation Month | Animal | Appreciation, Dog, Pet |
| Earth Month | Cause | Awareness, Environmental, Wildlife |
| Emotional Overeating Awareness Month | Special Interest | Awareness, Mental Health |
| Fair Housing Month | Special Interest | Awareness |
| Filipino Food Month | Food & Beverage | Appreciation, Cultural, Food |
| Financial Literacy Month | Cause | Awareness, Educational, Financial |
| Fresh Florida Tomato Month | Food & Beverage | Fruit, Healthy Food |
| Genocide Awareness Month | Cause | Awareness, Educational, Historical |
| Global Astronomy Month | Special Interest | Activities |
| Global Child Nutrition Month | Cause | Children, Health, Healthy Food |
| Grange Month | Cultural | American |
| IBS Month | Health | Awareness, Safety |
| Informed Woman Month | Special Interest | Educational, Women |
| International Amateur Radio Month | Arts & Entertainment | Activities, Appreciation, Hobby |
| International Customer Loyalty Month | Special Interest | Appreciation, Shopping, Work |
| International Guitar Month | Arts & Entertainment | Appreciation, Cultural, Music |
| Jazz Appreciation Month | Arts & Entertainment | Music |
| Keep America Beautiful Month | Cause | Civic, Environment |
| Month of the Military Child | Special Interest | Cultural, Family, Military |
| Move More Month | Health | Lifestyle |
| Multicultural Communication Month | Special Interest | Educational |
| National Adopt a Greyhound Month | Animal | Awareness, Dog, Pet |
| National African-American Women's Fitness Month | Special Interest | Awareness, Health, Women |
| National Alcohol Awareness Month | Health | Awareness, Beverage, Safety |
| National BLT Sandwich Month | Food & Beverage | American, Food |
| National Car Care Month | Special Interest | Appreciation, Awareness, Safety |
| National Card and Letter Writing Month | Special Interest | Activities, Appreciation |
| National Deaf History Month | Health | Awareness, Educational, Health |
| National Decorating Month | Special Interest | Activities, Lifestyle |
| National Donate Life Month | Cause | Awareness, Health |
| National Facial Protection Month | Health | Educational, Lifestyle, Safety |
| National Financial Capability Month | Special Interest | Educational, Financial |
| National Food Month | Food & Beverage | Comfort Food, Cooking, Food |
| National Foot Health Awareness Month | Health | Awareness, Educational |
| National Fresh Celery Month | Food & Beverage | Health, Healthy Food, Vegetable |
| National Frog Month | Animal | Appreciation, Conservation, Wildlife |
| National Garlic Month | Food & Beverage | Cooking, Healthy Food, Vegetable |
| National Grilled Cheese Month | Food & Beverage | American food, Cheese, Comfort Food |
| National Heartworm Awareness Month | Animal | Awareness, Pet Health |
| National Humor Month | Fun | Funny |
| National Internship Awareness Month | Special Interest | Awareness, Career, Work |
| National Kite Month | Arts & Entertainment | Activities, Hobby, Sports |
| National Knuckles Down Month | Fun | Activities, Hobby |
| National Literature Month | Arts & Entertainment | Books, Cultural, Educational |
| National Minority Health Month | Health | Awareness, Health |
| National Month of Hope | Special Interest | Appreciation, Lifestyle, Mental Health |
| National Multiple Birth Awareness Month | Health | Awareness, Family |
| National Pecan Month | Food & Beverage | Food |
| National Pest Management Month | Animal | Appreciation, Careers, Health |
| National Pet First Aid Awareness Month | Animal | Awareness, Pet, Pet Health |
| National Poetry Month | Arts & Entertainment | Appreciation, Cultural, Hobby |
| National Rebuilding Month | Special Interest | Activities, Awareness |
| National Safe Digging Month | Special Interest | Awareness, Environment, Safety |
| National Sexual Assault Awareness and Prevention Month | Cause | Awareness, Safety |
| National Sexually Transmitted Infections (STIs) Education and Awareness Month | Health | Awareness, Health |
| National Sjogren's Syndrome Awareness Month | Health | Awareness, Educational, Health |
| National Social Security Month | Federal | American, Educational, Financial |
| National Soft Pretzel Month | Food & Beverage | Comfort Food, Food |
| National Soy Foods Month | Food & Beverage | Food, Healthy Food |
| National Volunteer Month | Special Interest | Activities, Awareness |
| National Welding Month | Special Interest | Appreciation, Work |
| National Woodworking Month | Cultural | Activities, American, Work |
| National Youth Sports Safety Month | Special Interest | Awareness, Safety, Sports |
| Occupational Therapy Month | Appreciation | Awareness, Career, Health |
| Organic Breakfast Month | Food & Beverage | Breakfast, Organic |
| Panagyaman Rice Festival | Cultural | Appreciation, Festivities, Food |
| Parkinson's Awareness Month | Health | Awareness, Diseases, Educational |
| Parliamentary Law Month | Special Interest | American, Historical, Military |
| Pharmacists War on Diabetes Month | Health | Awareness, Educational, Health |
| Physical Wellness Month | Health | Activities, Lifestyle, Mental Health |
| Poetic Earth Month | Special Interest | Appreciation, Awareness, Environment |
| Prevent Lyme Disease in Dogs Month | Animal | Dog, Pet, Pet Health |
| Prevention of Cruelty to Animals Month | Animal | Pet, Pet Health, Wildlife |
| Primary Immunodeficiency Awareness Month | Health | Awareness, Diseases |
| Records and Information Management Month | | Educational, Work |
| Rosacea Awareness Month | Health | Awareness, Educational |
| Sarcoidosis Awareness Month | Health | Awareness, Diseases |
| School Library Month | Special Interest | Books, Children, Educational |
| Scottish-American Heritage Month | Cultural | Activities |
| Sexual Assault Awareness Month | Health | Awareness, Mental Health |
| Sports Eye Safety Awareness Month | Health | Awareness, Safety, Sports |
| Step up for 30 For Bowel Cancer Month | Health | Awareness, Diseases, Health |
| STI Awareness Month | Health | Awareness, Diseases, Educational |
| Straw Hat Month | Special Interest | Appreciation, Fashion, Pop Culture |
| Stress Awareness Month | Health | Awareness, Mental Health |
| Summer Tire Changeover Month | Special Interest | Activities, American, Educational |
| SunSmart Skin Cancer Prevention | Health | Awareness |
| Testicular Cancer Awareness Month | Health | Awareness, Diseases, Educational |
| Tomatillo and Asian Pear Month | Food & Beverage | Cooking, Food, Fruit |
| Women's Eye Health and Safety Month | Health | Diseases, Health, Women |
| Workplace Conflict Awareness Month | Special Interest | American, Awareness, Work |
| World Landscape Architecture Month | Special Interest | Appreciation, Historical |
| Worldwide Bereaved Spouses Awareness Month | Appreciation | Awareness, Family, Mental Health |
