Fortunately the rain held off as the ceremonial Eastgate opened before a giant idol of Her Majesty passed into the city on Sunday (June 12).
The City of Chester Band led the procession of schoolchildren up towards the Cross, before turning up Northgate Street and finishing outside the town hall.
A raft of choirs and community groups performed to serenade the sovereign.
Click through our gallery of pictures from the celebrations below:
Mayor of Chester Angela Claydon said: "What's lovely about this event today is it is bringing all people together.
"I would just like to thank everybody who has helped to organise this; including CH1ChesterBID, Theatre in the Quarter and the University of Chester.
"Welcome everybody. I hope you have all brought your brollies. Happy birthday Your Majesty."
Cheering crowds were led in a verse of God Save the Queen before the parade began at midday.
Chester's own Roman soldiers formed ornate gates under the Eastgate Clock before being ordered to allow the Queen access to the city.
The band led the parade through the hundreds of onlookers, who were taking their own snaps of the event, and up to Chester Town Hall.
More than 150 schoolchildren from across the borough formed the procession behind the giant beaming sovereign.
A stage was set up in the square as the City of Chester Male Voice Choir kicked off the entertainment.
Watch the City of Chester Male Voice Choir perform God Save the Queen below:
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Chester Ladies Choir, Chester Rock Choir, Frodsham Manor House Primary School, A Handbag of Harmonies and Dee Sign Choir added their talents to the celebrations.
Just after 2.30pm, Theatre in the Quarter's Matt Baker led the celebration back to Eastgate for a sing-a-long and a fitting finale.
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