All Events at Disneyland during July and December of 2016, 2017, 2020 and 2021

July 2016

Nov. 16 - TBATomorrowland : Disneyland ParkSeason of the Force Star Wars overlay, featuring Star Wars Launch Bay, Hyperspace Mountain, Path of the Jedi, and Star Wars-inspired foods at The Galactic Grill.
Jun. 16 - Aug. 13Disneyland Park : Disneyland ResortDisneyland All-American College Band This talented group of college students performs Tuesdays-Sundays for about 10 weeks during the summer. Performances are in various areas in both parks, and include a jazz set as well as marching band performances.
Jul. 01 - Aug. 14Hollywood Land : Disney California AdventureSneak peek of Pete's Dragon at Sunset Showcase Theater This sneak peek of the movie features in-theater special effects.
Jul. 04Disneyland Park : Disneyland ResortFourth of July Performances by the Third Marine Aircraft Wing Band The Third Marine Aircraft Wing Band will participate in a special 4th of July Flag Retreat Ceremony on Main Street, as well as perform an evening concert in the Fantasyland Theater.
Jul. 17Disneyland Park : Disneyland ResortDisneyland's 61st Birthday July 17, 2016

December 2016

http://land.allears.net/blogs/dnews/2016/09/new_merriment_coming_to_the_di.html - Jan. 08Resort Wide : Disneyland ResortHolidays at the Disneyland Resort Festive decorations resort-wide, including Christmas trees and gingerbread houses. Holiday parade and fireworks show in Disneyland, and the new World of Color - Winter Dreams and Festival of Holidays celebration in Disney California Adventure. Holiday themed versions of Jungle Cruise, Haunted Mansion, and "it's a small world". Special treats and menu items in both theme parks. Meet and Greet opportunities with holiday costumed characters and Santa Claus. Ice skating rink in Downtown Disney.
Nov. 10 - Jan. 08Disney California Adventure : Disneyland ResortFestival of Holidays Celebrate holidays around the world from November 10, 2017-January 7, 2018. Daily activities around Disney California Adventure include festival themed food and beverage booths, performances by guest musical groups, and the returning Viva Navidad! celebration.
Nov. 10 - Jan. 08Pixar Pier : Disney California AdventureWorld of Color - Season of Light This new World of Color show celebrates the season with holiday music and memorable moments from Disney animated movies.
Nov. 11 - Jan. 01Disneyland Park : Disneyland ResortPaint the Night Parade The Paint the Night Parade will return to Disneyland on select nights during the holiday season. Performance dates are currently on the Disneyland calendar are November 18-27, December 2-4, December 9-11. It's expected that the parade will run daily from December 16-January 1.
Dec. 03 - Dec. 04Main Street, U.S.A. : Disneyland ParkCandlelight Processional The Christmas story told in music and readings from the Bible. Featuring a mass choir, full orchestra, and guest narrator, performed from the Main Street Train Station. Performance times and narrators are TBD.

July 2017

Jan. 20 - Aug. 20Disneyland Park : Disneyland ResortMain Street Electrical Parade The Main Street Electrical Parade moves from Florida to California for a limited encore engagement at Disneyland in 2017. The parade was originally scheduled to run until June 18, but has been extended through August 20.
Feb. 24 - End date not yet announcedFantasyland : Disneyland ParkRed Rose Taverne For a limited time, the Village Haus Restaurant in Fantasyland has been transformed into the Red Rose Taverne, with a menu and decor inspired by the new live action Beauty and the Beast movie.
May. 27 - Sep. 10Disney California Adventure : Disneyland ResortSummer of Heroes Limited time offerings from May 27-September 10 include: Avengers Training Initiative - young recruits assemble with Black Widow and Hawkeye; Black Widow Encounter; Special themed merchandise and food in Hollywood Land
Jul. 14 - Jul. 16Resort Wide : Disneyland Resort2017 D23 Expo at the Anaheim Convention Center. The largest Disney fan event in the world, D23 Expo celebrates all the wonderful worlds of Disney entertainment, uniting all parts of The Walt Disney Company under one roof, including The Walt Disney Studios (including Marvel, Pixar, and Lucasfilm); Walt Disney Parks and Resorts; Disney Consumer Products and Interactive Media; and Media Networks (including ABC, Disney Channel, and Radio Disney). D23 Expo 2017 marks the fifth biennial event held in Anaheim.

December 2017

Feb. 24 - End date not yet announcedFantasyland : Disneyland ParkRed Rose Taverne For a limited time, the Village Haus Restaurant in Fantasyland has been transformed into the Red Rose Taverne, with a menu and decor inspired by the new live action Beauty and the Beast movie.
Nov. 03 - Jan. 07a bug's land : Disney California AdventureSneak Peek of "Coco" A sneak peek with enhanced effects of the film "Coco" will be shown in the "It's Tough to Be a Bug" Theater. The movie opens in theaters on November 22.
Nov. 10 - Jan. 07Resort Wide : Disneyland ResortHolidays at the Disneyland Resort Returning favorites during the November 10, 2017 to January 7, 2018 holiday celebration include "A Christmas Fantasy" Parade and "Believe...in Holiday Magic" fireworks at Disneyland and "World of Color - Season of Light", "Viva Navidad!", and "Festival of Holidays" at Disney California Adventure.
Nov. 10 - Jan. 07Disney California Adventure : Disneyland ResortFestival of Holidays Returns for the 2017 holiday season with special entertainment and food and beverage kiosks celebrating holiday traditions around the world.

July 2020

Summer 2020Disney California Adventure : Disneyland ResortAvengers Campus Phase 1 Opens When you visit Avengers Campus you will become part of an interconnected story that includes California Adventure, Disneyland Paris, and Hong Kong Disneyland. On each campus the Avengers will be looking for and recruiting people to join them.

December 2020

No Events Announced for this Month Yet

July 2021

No Events Announced for this Month Yet

December 2021

Nov. 11 - Dec. 9Disneyland Park : Disneyland Resort2021 Disney Merriest Nites
Nov. 14, 2021 - Jan. 9, 2022Disney California Adventure : Disneyland Resort2021 Disney Festival of Holidays at Disney California Adventure