It’s the first time in 10 years that the average temperature for the first 5 days of June has been colour-coded blue on my monthly chart. However, it’s not the coldest start to the month as that record is still held by 2012. The average temperature after 5 days of June in 2012 was a very chilly 10.8°C (51.4°F) compared with 12.4°C (54.3°F) this year.