Summer 2017 was a season of two halves, the mean temperature of 18.5C (1.3C above average) made it the tenth warmest summer since 1797.
Though it was warm overall it was also wet. Nearly 234mm of rain were collected, 159 per cent of average, making it the wettest summer since 1987.
Just under 535 hours of sun were recorded, 94 per cent of average and the sunniest summer for three years.
Wanstead Meteo 
Consistent with Paul’s latest post on summer temp.
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If you look at the synoptic charts for the hot spell in June, which greatly bumped up the seasonal mean, there was nothing special about it, in terms of any established Euro high pressure eg 1976. https://wansteadmeteo.wordpress.com/2017/06/21/hot-spell-is-minnow-among-historic-heatwaves/
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