| May 2020 | ||
|---|---|---|
| Date | Holiday | Where |
| May-1, Friday | Family Day and Family Preservation Month | Alaska (Designated Days) |
| May-1, Friday | Law Day | Florida (Designated Days) |
| May-1, Friday | Law Day | Nevada (Special Days) |
| May-1, Friday | Lei Day | Hawaii (Designated Days) |
| May-3, Sunday | Chaplains Day | Illinois (Designated Days) |
| May-4, Monday | Firefighters Memorial Day | Michigan (Special Days) |
| May-4, Monday | Hemophilia Awareness Day | Arkansas (Memorial Days) |
| May-4, Monday | Rhode Island Independence Day | Rhode Island (Public Holidays) |
| May-4, Monday | Water Professionals Appreciation Day | Georgia (Designated Days) |
| May-5, Tuesday | Alaska Agriculture Day | Alaska (Designated Days) |
| May-5, Tuesday | Primary Election Day | Indiana (Public Holidays) |
| May-7, Thursday | Alaska Day of Prayer | Alaska (Designated Days) |
| May-7, Thursday | Barrier Awareness Day | Kentucky (Local Holidays) |
| May-7, Thursday | Day of Prayer in Illinois | Illinois (Designated Days) |
| May-8, Friday | Hernando de Soto Day | Mississippi (Special Days) |
| May-8, Friday | Truman Day | Missouri (Public Holidays) |
| May-10, Sunday | Mother's Day | Kansas (Days of Commemoration) |
| May-10, Sunday | Mother's Day | Iowa (Designated Days) |
| May-10, Sunday | Mother's Day | Kentucky (Local Holidays) |
| May-10, Sunday | Mother's Day | Arizona, Nevada (Special Days) |
| May-10, Sunday | Mothers Day | Illinois (Designated Days) |
| May-10, Sunday | Saint Damien de Veuster Day | Hawaii (Designated Days) |
| May-11, Monday | Child Welfare Professionals Recognition Day | Florida (Designated Days) |
| May-11, Monday | Confederate Memorial Day | South Carolina (Public Holidays) |
| May-12, Tuesday | Primary Election Day | West Virginia (Public Holidays) |
| May-14, Thursday | Hmong Special Guerilla Units Remembrance Day | Minnesota (Special Days) |
| May-15, Friday | Law Enforcement Memorial Day | Florida (Designated Days) |
| May-15, Friday | Michigan Manufacturing Day | Michigan (Special Days) |
| May-15, Friday | Peace Officer Memorial Day | Georgia (Designated Days) |
| May-15, Friday | Police Officers Memorial Day | Michigan (Special Days) |
| May-15, Friday | Teacher's Day | Florida (Designated Days) |
| May-17, Sunday | Citizenship Day | Illinois (Designated Days) |
| May-17, Sunday | Senior Citizens Day | Illinois (Designated Days) |
| May-18, Monday | Asian Culture Day | Nevada (Special Days) |
| May-25, Monday | Memorial Day | Federal, US Banks |
| May-25, Monday | Memorial Day | New York Stock Exchange (NYSE Holidays) |
| May-25, Monday | Memorial Day | Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming (Public Holidays) |
| May-25, Monday | Memorial Day | United States Postal Service (USPS Holidays) |
| May-29, Friday | Birthday of President John F. Kennedy | Michigan (Special Days) |