Last June was the hottest month on record and the 13th month in a row to set a monthly temperature record, according to new data released by the European Union’s Copernicus Climate Change Service. For 12 months in a row, the average global temperature has been 1.5°C higher than in the pre-industrial era. The average sea surface temperature in June was 20.85°C, which is also the highest value in the entire period of observation.