June began largely unsettled with significant rainfall across most parts of the UK. High pressure began to build after the 10th for England and Wales whilst Scotland continued to experience occasional wet weather as weather fronts moved north around the high pressure system. From the middle of the month exceptionally warm air was drawn up from the south with somewhere in the UK exceeding 30°C from 17th to 21st June – the first time this has happened in June since 1995. 34.5°C was recorded at Heathrow Airport on 21st which was the highest June temperature since 1976. The last few days of the month were fresher as low pressure systems brought rain to many areas, ending the month as it had begun. In fact, despite the hot, dry weather mid-month, June was among the wettest on record with 50% more rainfall on average for the whole of the UK, and Scotland experiencing its equal-wettest June with 156 cm of rainfall. Some area of southern and eastern Scotland received twice the normal rainfall for June, and some areas - including Edinburgh Botanic Gardens and RAF Leuchars – had their wettest June on record.
UK Weather Averages: June 2017 (Source: Met Office)