| Start Date and Time | Event Details | Location |
|
| All Day | Sultana Education Foundation Public Sails (Multi-Day Event) | 211 S Front St |
| All Day | Summer Concert Series - Celebrate Frederick (Multi-Day Event) | Baker Park Bandshell |
| All Day | Summer Concert Series Frederick (Multi-Day Event) | Baker Park Band Shell |
| All Day | Summer Sundays in the Park (Multi-Day Event) | Pell Gardens |
| All Day | Summerfest Family Theater - Celebrate Frederick (Multi-Day Event) | Baker Park Bandshell |
| All Day | Summerfest Family Theatre (Multi-Day Event) | Baker Park Band Shell |
| All Day | Sundae Sundays at Capt. Avery Museum (Multi-Day Event) | 1418 E W Shady Side Rd |
| All Day | Sunday Afternoon Canoe Tours (Multi-Day Event) | 3301 Waterview ave |
| All Day | Sunset Paddle on the Patapsco (Multi-Day Event) | 3301 Waterview ave |
| All Day | The Damascus Flea (Multi-Day Event) | Damascus High School |
| All Day | The Full Story: Maryland, The Surratts, and The Crime of the Century – An Exhibition (Multi-Day Event) | 9118 Brandywine Rd |
| All Day | The Great Mystery Show (Multi-Day Event) | 800 Key Hwy |
| All Day | Tinker Bell (Multi-Day Event) | 7300 MacArthur Blvd. |
| All Day | Tot Time (Multi-Day Event) | Historic London Town & Gardens |
| All Day | Trace Your Roots at Benjamin Banneker Historical Park & Museum (Multi-Day Event) | 300 Oella Ave |
| All Day | We The People - How Civic Engagement Has Shaped Laurel Exhibit (Multi-Day Event) | 817 Main St |
| All Day | Wheaton Arts Parade & Festival with FREE Art Workshops (Multi-Day Event) | Art Factory, Westfield Wheaton Mall (next to AMC Wheaton Theater) |
| All Day | Whiskey on the Waterfront (Multi-Day Event) | 301 E. Cromwell St |
| All Day | WTMD First Thursday Music Festival - Canton Waterfront Park (Multi-Day Event) | Canton Waterfront Park |
| All Day | Be a Good Little Widow (Multi-Day Event) | 6301 River Rd |
| All Day | Little Yough Summer Music Festival (Multi-Day Event) | Mountain Fresh Pavilion |
| All Day | Little Yough Summer Music Festival (Multi-Day Event) | Mountain Fresh Pavilion |
| All Day | Little Yough Summer Music Festival (Multi-Day Event) | Mountain Fresh Pavilion |
| All Day | Morning Bird Walks at Oregon Ridge Nature Center & Park (Multi-Day Event) | 13555 Beaver Dam Rd |
| All Day | Subverting Beauty - African Anti-Aesthetics (Multi-Day Event) | 10 Art Museum Drive |
| All Day | "Purchased Lives" The Interstate Slave Trade, 1808-1865" Frederick Douglass (Multi-Day Event) | 3400 N Charles St |
| All Day | 2nd Friday Art Strolls (Multi-Day Event) | Jefferson Street |
| All Day | 2nd Saturday Contra Dance (Multi-Day Event) | St Marks on the Hill |
| All Day | 3rd Friday in Downtown Salisbury (Multi-Day Event) | Downtown Salisbury |
| All Day | 3rd Thursday Lunchtime Concert (Multi-Day Event) | Artisans Green |
| All Day | 4th Saturday Bay Stroll (Multi-Day Event) | Crisfield City Dock |
| All Day | African American Heritage Tour Including Frederick Douglass Sites (Multi-Day Event) | Annapolis City Dock Information Booth |
| All Day | African-American History Walking Tour - Heritage Frederick (Multi-Day Event) | The Roger Brooke Taney House |
| All Day | Alive at Five (Multi-Day Event) | Carroll Creek Amphitheater |
| All Day | Annapolis Musicians Fund For Musicians presents In The Vane Of...Subscription Package of 3 Shows (Multi-Day Event) | 33 West St |
| All Day | Art and Architecture Walking Tour - Heritage Frederick (Multi-Day Event) | Heritage Frederick |
| All Day | Arts of Asia (Multi-Day Event) | 600 N Charles St |
| All Day | Belvedere Square Summer Sounds Concert Series (Multi-Day Event) | Belvedere Square |
| All Day | Blast-in-the-Past - Hands-On History Playground (Multi-Day Event) | 9650 Muirkirk Rd |
| All Day | Blue Star Museums - Star-Spangled Banner Flag House (Multi-Day Event) | 844 E Pratt St |
| All Day | BricknFire Pizza Truck with Music by Justin B (Multi-Day Event) | 15010 Roddy Rd |
| All Day | C&O Canal Bike Journey & the Great Allegheny Passage (Multi-Day Event) | 326 E Main St |
| All Day | Canoe N Scoop (Multi-Day Event) | 3301 Waterview ave |
| All Day | Carillon Recitals (Multi-Day Event) | Baker Park |
| All Day | Cavalcade of Street Cars (Multi-Day Event) | 1313 Bonifant Rd |
| All Day | Centreville Farmers' Market (Multi-Day Event) | 611-631 Railroad Ave |
| All Day | Chestertown First Friday (Multi-Day Event) | Downtown Chestertown A&E District |
| All Day | Cipolla Rossa Pizza Truck & Live Music at Catoctin Breeze Winery (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Civil War Streetcars and Gilded Age Streetcars (Multi-Day Event) | 1313 Bonifant Rd |
| All Day | Civil War Tour at the Seton Shrine (Multi-Day Event) | 339 S. Seton Ave |
| All Day | Civil War Walking Tour - Heritage Frederick (Multi-Day Event) | Historical Society of Frederick County |
| All Day | Comedy Night at AMP (Multi-Day Event) | 11810 Grand Park Avenue |
| All Day | Craft Your Own Rooftop Cocktail (Multi-Day Event) | 301 E. Cromwell St. |
| All Day | Crowning Glory - Art of the Americas (Multi-Day Event) | 600 N Charles St |
| All Day | Derwood Farmers Market (Multi-Day Event) | 16501 Redland Road |
| All Day | Dinosaurs - Land of Fire and Ice Exhibit (Multi-Day Event) | 35 Market Pl |
| All Day | Discover Downtown Cumberland (Multi-Day Event) | 57 N. Liberty Street |
| All Day | Downtown Elkton Classic Car Show (Multi-Day Event) | Dowtown Elkton (North & Main Streets) |
| All Day | Downtown Tunes Concert Series (Multi-Day Event) | 22735 Washington Street |
| All Day | Drop In Art - Third Saturdays (Multi-Day Event) | 909 S Schumaker Dr |
| All Day | Drop In Art Jr. – Every Wednesday (Multi-Day Event) | 909 S Schumaker Dr |
| All Day | Drunk and Disorderly - Frederick in the Civil War Walking Tour (Multi-Day Event) | Heritage Frederick |
| All Day | eBird Tuesdays (Multi-Day Event) | 909 S Schumaker Dr |
| All Day | Elkton First Fridays (Multi-Day Event) | Downtown Elkton |
| All Day | Extended Summer Hours at Setan Shrine (Multi-Day Event) | 339 S. Seton Ave |
| All Day | Family Fun Fridays at the Inner Harbor - Port Discovery (Multi-Day Event) | 35 Market Pl |
| All Day | Fantastic Fridays at Port Discovery (Multi-Day Event) | 35 Market Pl |
| All Day | Farmers - Craft - Flea Market at 1812 Brewery (Multi-Day Event) | 13006 Mason Rd |
| All Day | Farmers' Market (Multi-Day Event) | 9023 Bay Avenue |
| All Day | First Friday Opening Reception - Ocean City Center for the Arts (Multi-Day Event) | 502 94th Street |
| All Day | First Fridays at the Elkton Art Loop (Multi-Day Event) | Downtown Elkton |
| All Day | First Fridays in Havre de Grace (Multi-Day Event) | Downtown Havre de Grace |
| All Day | First Saturday Frederick - Fire In Ice (Multi-Day Event) | Downtown Frederick |
| All Day | First Saturday in Downtown Frederick (Multi-Day Event) | Historic Downtown Frederick |
| All Day | First Saturday in Downtown Frederick (Multi-Day Event) | Downtown Frederick |
| All Day | First Sunday Arts Festival (Multi-Day Event) | First block of West and Calvert Streets |
| All Day | First Sunday Arts Festival - Annapolis (Multi-Day Event) | West Street and Calvert Street (Intersection) |
| All Day | Fort Frederick in the Civil War (Multi-Day Event) | 11100 Fort Frederick Rd |
| All Day | Fourth Saturday Bay Stroll in Crisfield (Multi-Day Event) | Crisfield City Dock |
| All Day | Free Summer Concert Series - Peacherine Ragtime Society Orchestra & More (Multi-Day Event) | 801 Chase St |
| All Day | Free Summer Outdoor Concert from the Lawn at Strathmore (Multi-Day Event) | 5301 Tuckerman Ln |
| All Day | Free Tasting at Baltimore Whiskey Company (Multi-Day Event) | 2800 Sisson St |
| All Day | Full Moon Paddle (Multi-Day Event) | 3301 Waterview ave |
| All Day | Ghost Tours of Historic Frederick (Multi-Day Event) | Brewer's Alley Restaurant and Brewery |
| All Day | Ghost Tours of Historic Frederick - True Stories (Multi-Day Event) | Brewer's Alley Restaurant and Brewery |
| All Day | Ghostly Guides (Multi-Day Event) | 2711 Maryland Ave |
| All Day | Guided Tour of the Historic Tudor Hall (Multi-Day Event) | 17 Tudor Lane |
| All Day | Hagerstown Artists Group - Outside the Box (Multi-Day Event) | 34 S. Potomac St, Suite 100 |
| All Day | Historic Frederick Walking Tour (Multi-Day Event) | Heritage Frederick |
| All Day | Holy Crepes Food Truck & Live Music by David Davol (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Inner Harbor Kayak Tour (Multi-Day Event) | 601 Light Street |
| All Day | John Wilkes Booth Escape Route Tours (Multi-Day Event) | 9118 Brandywine Rd |
| All Day | Joseph Booth: The Youngest Brother of John Wilkes Booth (Multi-Day Event) | 17 Tudor Lane |
| All Day | Just Smokin’ Around BBQ Food Truck & Live Music by Paul Brosseau (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Knife & a Kitchen Food Truck & Live Music by Jordan Clawson (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Knife & a Kitchen Food Truck Plus Live Music (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Laugh Riot at Positano Live Standup Comedy Saturdays (Multi-Day Event) | 4948 Fairmont Ave |
| All Day | Learn to Kayak at Cherry Hill Splash Park (Multi-Day Event) | 101 Reedbird Ave. |
| All Day | Leonardtown First Fridays (Multi-Day Event) | 22735 Washington Street |
| All Day | Literary Mt. Vernon Walking Tour (Multi-Day Event) | Enoch Pratt Free Library - Central Branch |
| All Day | Literary Pub Crawl in Ellicott City (Multi-Day Event) | The Wine Bin |
| All Day | Literary Walking Tour (Multi-Day Event) | Enoch Pratt Free Library - Central Branch |
| All Day | Live Music at Everedy Square and Shab Row (Multi-Day Event) | Everedy Square and Shab Row |
| All Day | Live Music by Damian Keavney at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Live Music by Harmonica Jazz at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Live Music by Joshua Bayer Jazz at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Live Music by Monocacy Jazz at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Live Music by Scott Barrett at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Living History Cruise Aboard the Liberty Ship JOHN W. BROWN (Multi-Day Event) | Cruise Maryland Terminal |
| End Day | Lunes Latino (Multi-Day Event) | 7002 Arundel Mills Cir |
| All Day | MAMMA MIA! (Multi-Day Event) | 5900 Symphony Woods Rd |
| All Day | Mary Reid Kelley and Patrick Kelley - We Are Ghosts (Multi-Day Event) | 10 Art Museum Dr |
| All Day | Mount Airy Main Street Farmers' Market (Multi-Day Event) | Railyard. Behind Historic Mount Airy Train Station |
| All Day | Movie Night on Carroll Creek (Multi-Day Event) | Carroll Creek Amphitheater |
| All Day | Music in the Park - Chestertown's Summer Series (Multi-Day Event) | Fountain Park |
| All Day | Open Mic in the Woods - Open Mic Night (Multi-Day Event) | 2001 Bryan Point Road |
| All Day | Paint in the Woods - Wine & Design (Multi-Day Event) | 2001 Bryan Point Road |
| All Day | Paint It! Ellicott City Juried Exhibition (Multi-Day Event) | 8510 High Ridge Road |
| All Day | Pearl Harbor Memorial Ceremony (Multi-Day Event) | USCGC TANEY |
| All Day | Pen Mar Park Summer Concerts (Multi-Day Event) | Pen Mar Park |
| All Day | Phaan Howng - The Succession of Nature (Multi-Day Event) | 10 Art Museum Drive |
| All Day | Queen Anne's County Free Summer Concert Series - Cascia Winery (Multi-Day Event) | Cascia Vineyards |
| All Day | Queen Anne's County Free Summer Concert Series - Hemingway's (Multi-Day Event) | 357 Pier One Road |
| All Day | Rails and Ales Night at the Museum (Multi-Day Event) | 2711 Maryland Ave |
| All Day | Red, White & Blue Summer Concert Series (Multi-Day Event) | Hagerstown Community College Amphitheater |
| All Day | Sail on Skipjack Nathan of Dorchester (Multi-Day Event) | End of High Street |
| All Day | Saturday Wine Tastings (Multi-Day Event) | Chester River Wine & Cheese Co. |
| All Day | Shady Grove Farmers Market (Multi-Day Event) | Rockville Campus of Johns Hopkins University |
| All Day | Shakespearean Daughter: The Life of Edwina Booth Grossman (Multi-Day Event) | 17 Tudor Lane |
| All Day | Sondheim Artscape Prize Finalists (Multi-Day Event) | 10 Art Museum Drive |
| All Day | Spencer Finch - Moon Dust (Multi-Day Event) | 10 Art Museum Dr |
| All Day | Spirits of Ellicott City Pub Crawl (Multi-Day Event) | 8390 Main Street |
| All Day | Star Spangled Canoe Tour (Multi-Day Event) | Hull Street Pier |
| All Day | Station North Flea Market (Multi-Day Event) | 12 W North Ave. |
| All Day | Steampunk Masquerade (Multi-Day Event) | 3711 Maryland Ave |
| All Day | Stephen Towns - Rumination and a Reckoning (Multi-Day Event) | 10 Art Museum Dr |
| All Day | Sultana Education Foundation Public Paddle (Multi-Day Event) | 200 S. Cross St |
| All Day | Maren Hassinger - The Spirit of Things (Multi-Day Event) | 10 Art Museum Drive |
| All Day | Arts by the Bay's Pierced Metal Inlay Jewelry with Artist Jeweler Charlotte Lindgren (Multi-Day Event) | 307 St John St |
| All Day | Disney's The Little Mermaid (Multi-Day Event) | CCBC/Essex |
| All Day | Come Back to the Five and Dime, Jimmy Dean, Jimmy Dean (Multi-Day Event) | CCBC/Essex |
| All Day | Live Music by Paul Brosseau at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Live Music by Paul Brosseau at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Carroll County 4-H & FFA Fair (Multi-Day Event) | 4100 College Heights Dr. |
| All Day | Carroll County 4-H Fair (Multi-Day Event) | 700 Agriculture Way |
| All Day | Garrett County Agriculture Fair (Multi-Day Event) | Garrett County Fairgrounds |
| All Day | Live Music by California Bob at Catoctin Breeze (Multi-Day Event) | 15010 Roddy Rd |
| All Day | Lincoln’s Final Hours (Multi-Day Event) | 17 Tudor Lane |
| Creedence Clearwater Revisited | 801 Chase Street |
| Sail Away & Learn the History of the Chesapeake Bay aboard the Schooner Woodwind - Kevin Brooks | 80 Compromise Street |
| Sail Away & Learn the History of the Chesapeake Bay aboard the Schooner Woodwind - Kevin Brooks | 80 Compromise Street |
| 9:00 AM - 4:00 PM | Motor Vehicle Administration Consumer Outreach - Baltimore | |
| 12:00 PM - 12:30 PM | ARWG Joint Lunch w/Coast Smart Council | DNR, Tawes State Office Building |
| 12:30 PM - 2:00 PM | MCCC Adaptation and Response Working Group | DNR, Tawes State Office Building |
| 1:00 PM - 4:00 PM | Public Hearing on Proposed Affordable Care Act (ACA) Health Insurance Premium Rates for 2019 | |
| 1:00 PM - 4:00 PM | Public Hearing on Proposed Affordable Care Act (ACA) Health Insurance Premium Rates for 2019 | |