https://digital.nmla.metoffice.gov.uk/digitalFile_1f3ce836-7850-4c40-bce8-0a0ce05baacf/ https://digital.nmla.metoffice.gov.uk/digitalFile_1f3ce836-7... >Monthl

https://digital.nmla.metoffice.gov.uk/digitalFile_1f3ce836-7850-4c40-bce8-0a0ce05baacf/ https://digital.nmla.metoffice.gov.uk/digitalFile_1f3ce836-7... >Monthly Weather Report 1911 Last page (140): >In England 90° was exceeded on several days, the hottest being AUGUST 9th, 97° at Camden Square, London, Woking­ham and Hillington, 98° at Raunds, and 100° at Greenwich (in the Glaisher screen; the value recorded in the Stevenson screen was 97°), the highest ever recorded in this country. AFAIK Stevenson screens are now the standard, and Glaisher stands tend to record higher maximums, so the 100 isn't directly comparable.