| March Monthly Observances |
| American Red Cross Month |
| Deep Vein Thrombosis (DVT) Month |
| Deaf History Month (3/13 to 4/15) |
| Employee Spirit Month |
| Expanding Girls' Horizons in Science & Engineering Month |
| Honor Society Awareness Month |
| Humorists Are Artists Month |
| International Expect Success Month |
| International Ideas Month |
| International Listening Awareness Month |
| International Mirth Month |
| Irish-American Heritage Month |
| Music In Our Schools Month |
| National Athletic Training Month |
| National Caffeine Awareness Month |
| National Cheerleading Safety Month |
| National Chronic Fatigue Syndrome Awareness Month |
| National Clean Up Your IRS Act Month |
| National Colorectal Cancer Awareness Month |
| National Craft Month |
| National Ethics Awareness Month |
| National Eye Donor Month |
| National Frozen Food Month |
| National Multiple Sclerosis Education & Awareness Month |
| National Kidney Month |
| National Nutrition Month |
| National On-Hold Month |
| National Social Work Month |
| National Talk to Your Teen About Sex Month |
| National Umbrella Month |
| National Women's History Month |
| Optimism Month |
| Play The Recorder Month |
| Poison Prevention Awareness Month |
| Red Cross Month |
| Save Your Vision Month |
| Small Press Month |
| Spiritual Wellness Month |
| Supply Management Month |
| Women's History Month |
| Workplace Eye Health and Safety Month |
| Youth Art Month |
| Holy Humor Month (3/30 - 4/30) See April |
| National Alternative Fuel Autos Month (3/15 - 4/15) |
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| March Weekly Observances |
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| National Ghostwriters Week: 1-7 |
| National Write A Letter of Appreciation Week: 1-7 |
| Return The Borrowed Books Week: 1-7 |
| National Week of The Ocean Festival Sea-son: 1-7 |
| Iditarod Race: 1-16 |
| World Folk Tales & Fables Week: 2-8 |
| Celebrate Your Name Week: 2-8 |
| National Professional Pet Sitters Week: 2-8 |
| Read an E-Book Week: 2-8 |
| Save Your Vision Week: 2-8 |
| Teen Tech Week: 2-8 |
| Telecommuter Appreciation Week: 2-8 |
| National Cheerleading Week: 3-9 |
| National School Breakfast Week: 3-9 |
| National Sleep Awareness Week: 3-9 |
| National Procrastination Week: 3-9 |
| Newspaper in Education Week: 3-7 |
| Consider Christianity Week: 9-15 |
| Girl Scout Week: 9-15 |
| International Brain Awareness Week: 10-16 |
| Multiple Sclerosis Awareness Week: 10-17 |
| Turkey Vultures Return to The Living Sign: 11-17 |
| National Toad Hollow Week: 14-21 |
| National Agriculture Week: 16-22 |
| National Animal Poison Prevention Week: 16-22 |
| National Inhalant and Poisons Awareness Week: 16-22 |
| National Poison Prevention Week: 16-22 |
| Act Happy Week: 17-22 |
| American Chocolate Week: 17-22 (Always 3rd Week) |
| Campfire USA Birthday Week: 17-23 |
| Wellderly Week: 17-22 |
| National Spring Fever Week: 17-25 |
| National Bubble (blowers) Week: 20-26 |
| Racial Discrimination: 21-27 |
| Doctor-Patient Trust Week: 23-29 |
| National Protocol Officer's Week: 23-30 |
| Egg Salad Week: 24-30 |
| Week of Solidarity with People's Struggling Against Racism & |
| National Cleaning Week: 23-29 |
| Just Pray No: Worldwide Weekend Prayer: 29-30 |
| Root Canal Awareness Week: 30-4/5 |
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| March Daily Observances |
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| Beer Day: 1 |
| Be Positive - Do Something Day: 1 |
| Peace Corp Birthday: 1 |
| Pig Day: 1 |
| Plan a Solo Vacation Day: 1 |
| Refired, Not Retired Day: 1 |
| Namesake Day: 2 |
| Sherlock Holmes Day: 2-4 |
| Fun Facts About Names Day: 3 |
| NEA's Read Across America Day: 3 |
| I Want You To Be Happy Day: 3 |
| National Anthem Day: 3 |
| What If Cats and Dogs Had Opposable Thumbs? Day: 3 |
| Benjamin Harrison Day: 4 |
| Courageous Follower Day: 4 |
| National Scrapbooking Industry Day: 4 |
| March Forth-Do Something Day: 4 |
| National Grammar Day: 4 |
| Old Inauguration Day: 4 |
| Peace Corps Day: 4 |
| Unique Names Day: 4 |
| Multiple Personality Day: 5 |
| Saint Piran's Day: 5 & 8 |
| Nametag Day: 6 |
| Middle Name Pride Day: 7 |
| Shabbat Across America/Canada Day: 7 |
| World Day of Prayer: 7 |
| Day for Women's Rights & International Peace: 8 |
| Eggsibit (Decorating Egg Shells) Day: 8-9 |
| Genealogy Day: 8 |
| Girls Write Now Day: 8 |
| Private George Watson Day: 8 |
| International Working Women's Day: 8 |
| Check Your Batteries Day: 9 |
| Daylight Saving Time Begins: 9 (to November 2) |
| Get Over It Day: 9 |
| Panic Day: 9 |
| Daylight Savings Time Begins: 9 (to November 2) |
| Mario Day: 10 |
| Napping Day (Monday after daylight savings times): 10 |
| Salvation Army Day: 10 |
| Dream 2008 Day: 11 |
| Organize Your Home Office Day: 11 |
| Girl Scout Day: 12 |
| Good Samaritan Involvement Day: 13 |
| National Open An Umbrella Indoors Day: 13 |
| World Kidney Day: 13 |
| International Ask A Question Day: 14 |
| MOTH-ER Day: 14 |
| Pi Day (as in the math pie = 3.14159265 etc.): 14 |
| Brutus Day: 15 |
| Ides of March: 15 |
| International Day of the Seal: 15 |
| Maple Syrup Day: 15 |
| National Quilting Day: 15 |
| True Confessions Day: 15 |
| Curlew Day: 16 |
| Lips Appreciation Day: 16 |
| St. Urho's Day: 16 |
| Campfire Girls Day: 17 |
| Freedom of Information Day: 17 |
| St. Patrick's Day: 17 |
| Well-Elderly or Wellderly Day: 17 |
| Awkward Moments Day: 18 |
| Forgive Mom and Dad Day: 18 |
| National Biodiesel Day: 18 |
| Act Happy Day: 19 |
| National Chocolate Caramel Day: 19 |
| Swallows Return to San Juan Capistrano Day: 19 |
| Absolutely Incredible Kid Day: 20 |
| Companies That Care Day: 20 |
| Great American Meat Out Day: 20 |
| Proposal Day: 20 |
| National Agriculture Day: 20 |
| Snowman Burning Day: 20 |
| Good Friday: 21 |
| Memory Day: 21 |
| International Day for the Elimination of Racial Discrimination: 21 |
| National Common Courtesy Day: 21 |
| Purim: 21 |
| World Down Syndrome Day: 21 |
| As Young As You Feel Day: 22 |
| International Day of Radiant Peace: 22 (also January 22, June 22, Oct.22) |
| International Goof-off Day: 22 |
| World Day for Water: 22 |
| Easter: 23 |
| National Puppy Day: 23 |
| Near Miss Day: 23 |
| O.K. Day: 23 |
| World Meteorological Day: 23 |
| National Chocolate Covered Raisins Day: 24 |
| United Nations: World Tuberculosis Day: 24 |
| American Diabetes Association Alert Day: 25 |
| National Day of Celebration of Greek & American Democracy: 25 |
| Pecan Day: 25 |
| Legal Assistants Day: 26 |
| Make Up Your Own Holiday Day: 26 |
| Education and Sharing Day: 27 |
| Kite Flying Day: 27 |
| Quirky Country Music Song Titles Day: 27 |
| Knights of Columbus Founders Day: 29 |
| National Mom & Pop Business Owner's Day: 29 |
| Texas Loves The Children Day: 29 |
| Doctors Day: 30 |
| Grass Is Always Browner On The Other Side Of The Fence Day: 30 |
| Pencil Day: 30 |
| Bunsen Burner Day: 31 |
| National "She's Funny That Way" Day: 31 |