Today marks the 866th consecutive day that the rolling 365-day mean has been above 12C, a level that is nearly a degree above the average annual mean temperature for this region.

The next longest period, back to 1960, was 499 days starting on June 9th 2003.

The graph below shows that since around 2015 this 23,644 day period has been stuck in a high rut.

Looking at months on their own it has now been over 20 since this station recorded a month around a degree cooler than average.

This September is looking like it will be yet another milder than average month. If the mean for 2024 finishes above the level of 12C it will be the third 12C year in a row!

Prior to this an annual mean of 12C has been recorded on only 11 occasions since 1960: 1989, 1997, 1999, 2002, 2003, 2011, 2014, 2018, 2020, 2022, 2023 .