Twenty-nine plus

Every year I update my table of thirty-plus temperatures, as recorded at Hampstead. Here's how we left things last year . Dates on which the temperature at Hampstead reached 30°C May Jun Jul Aug Sep 2010 27 9/10 2011 27 2012 25 18 2013 13 15/16/17 22 1 2014 18 2015 1 22 2016 18/19/20 24 13 2017 17/18/19/20/21 6 2018 5/6/7/8 15 23 25/ 26 /27 2/3 6/7 2019 29 23/24/ 25 25/26/27 2020 24/25/26 31 7…