That subtle drop in the mercury and the sudden reapparance of your favorite cardigan can mean only one thing: it's time for Oktoberfest.  Or should I say Oktoberfests

I should, because this year, there are more O'fests (and Harvest fests, Pumpkin parties, etc) than you can shake a stein at.  Check out our handy synopsis for all things autumnal.  And feel free to add anything we missed in the comments.

Baying HoundFall Equinox Festival – 1108 Taft St, Rockville, MD – Thursday 9/20 – Saturday 9/22, 12-10

Redwood2nd Annual Oktoberfest – 7121 Bethesda Lane, Bethesda, MD – Saturday 9/22, 1-8

Brewmaster's Castle and All Points WestOktoberfest – 1317 New Hampshire Ave NW – Saturday 9/22, 2-5

Bar Dupont – Oktoberfest – 1500 New Hampshire Ave NW – Saturday 9/22 – Sunday 9/30, noon til close; music 9/23 2-7, 9/27 6-9; 9/28 6-10

Mad FoxOktoberfest – 444 West Broad St, Suite I, Falls Church, VA – Sunday 9/23, 11-6

Big HuntOktoberfest – 1345 Connecticut Ave NW – Monday 9/24, 4-close

Boundary RoadOktoberfest Menu Kickoff – 414 H St NE – Monday 9/24, 5-close

Jackson 20Oktoberfest Craft Canned Beer Dinner – 480 King St, Alexandria, VA – Thursday 9/27, 7-10

Pizzeria Paradiso Autumn Fest – All locations – Monday 10/1 – Friday 10/5

Capitol City Shirlington – 13th Annual Mid-Atlantic Oktoberfest – 4001 Campbell Ave, Arlington, VA – Saturday 10/6, 12-7

Neighborhood Restaurant GroupSnallygaster – 3rd and Water St SE – Saturday 10/13, 1-5