Queen's birthday: Why does the Queen have two birthdays?

The Queen celebrates twice a year

Queen Elizabeth II arrives at the Queen Elizabeth II delivery office in Windsor with Prince Philip, Duke of Edinburgh on April 20, 2016 in Windsor, England
The Queen has two birthdays
(Image credit: Photo by Chris Jackson - WPA Pool/Getty Images)

The Queen is celebrating her official birthday today, but why does Her Majesty have two birthdays?

The Queen is celebrating her official birthday today, June 12, with a scaled back version of Trooping of the Colour.

But, having just celebrated her 95th birthday on 21 April, some royal watchers are wondering why the Queen has two birthdays. 

It's a tradition that dates back to 1748 and is to ensure her the Monarch—Britain's longest-serving monarch—can ensure the weather is nice enough for outdoor activities to mark the occasion. 

King George II was born in November and given how typically cold a month November is, he created a second date for his official celebration.

The Queen will celebrate her official birthday today with a scaled-back version of the Trooping of the Colour.

She will be greeted with a military parade and a Red Arrows fly over.

A statement on The Royal Family website says, "The Queen will view a military parade in the Quadrangle of Windsor Castle to mark Her Majesty’s Official Birthday, on Saturday 12th June.

"The parade will be held by the Household Division, and The Queen's Colour of F Company Scots Guards will be trooped. His Royal Highness The Duke of Kent, Colonel, Scots Guards, will accompany The Queen.

"The parade will be led by the Foot Guards, who will be joined in the Quadrangle by The King’s Troop Royal Horse Artillery and the Household Cavalry Mounted Regiment. Music will be played by a Massed Band of the Household Division, which will include 1st Battalion Scots Guards Pipes and Drums.

"Upon The Queen and The Duke of Kent's arrival in the Quadrangle, Her Majesty and His Royal Highness will be greeted by a Royal Salute, and the National Anthem.

"The parade will commence with the Musical Troop as the Band plays. The Colour will then be trooped through the ranks, and the parade will conclude with a second Royal Salute.

"The King's Troop Royal Horse Artillery will then fire a 41 Gun Royal Salute, to mark Her Majesty’s Official Birthday, from the East Lawn at Windsor Castle."