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    Prince Harry, Meghan Markle announce 19 May 2018 wedding date: How likely is rain?

    By Kristina Pydynowski, AccuWeather senior meteorologist
    December 17, 2017, 10:35:05 AM EST

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    Keningston Palace has announced that Prince Harry will marry Meghan Markle on 19 May 2018 at St. George’s Chapel in Windsor Castle, located outside of London.

    “A May wedding poses the less risk for extreme temperatures as heat waves are most frequent during July and August,” AccuWeather Senior Meteorologist Eric Leister said.


    During the last 10 years, temperatures on 19 May at London’s Heathrow Airport averaged 18.5 C (65.3 F) for an afternoon high and 8.5 C (47.3 F) for a morning low.

    The highest reading occurred on 19 May 2014 when temperatures soared to 25.0 C (77 F), whilst jumpers were needed on this day in 2015 and 2008 when a high of 14.4 C (58 F) was recorded.

    Climo Dec 15


    It has rained on five out of the last 10 years on 19 May, including the past three years. The rainfall was light with no more than 2.3 mm (0.09 of an inch) recorded on those rainy days.

    Heathrow averages 8.8 days of rain—with at least 1 mm (0.04 of an inch) measured—each May for a total of 49.4 mm (1.94 inches).

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    On the flip side, May features an average of nearly 200 hours of sunshine, according to data from the UK Met Office.

    “Whilst winds are typically lightest during August and September, May is historically not as windy as January into April,” Leister said.

    More details on the wedding forecast will be available as the much-anticipated event draws closer.

    Prince Harry Meghan

    Britain's Prince Harry and his fiancee Meghan Markle pose for photographers during a photocall in the grounds of Kensington Palace in London on 27 November 2017. (AP Photo/Matt Dunham)

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