Saint Swithin's Day

Posted on July 15, 2013 by Richard Hoptroff

Clink Street, London, July 15th 2013

15th July - most easily remembered as the day after Bastille Day - is, here in Britain, know as Saint Swithin's Day.  Living in the 9th century, he is now most known for his posthumous miracles and his weather forecasting abilities.  For it is said that whatever the weather today, it will be the same for the next forty days.  There is good physics behind it, too, relating to the jet stream and the Azores High. (Swithin kept that bit secret, though.)  It happens to be reasonably accurate if you look at past weather data.

Today is hot and sunny here in London. 

 

 

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