Yesterday was the warmest March day in the UK for 53 years, falling 1.1°C short of the record high of 25.6°C measured at Mepal, Cambridgeshire in 1968.
The current meteorological year is, however, running noticeably cooler than last year in the north-east of England.
In marked contrast, 2020 was warmer than 2019 throughout the year.
At the end of Week 17 this meteorological year, the Mean Temperature was running 0.87°C cooler than 2020. At the same point last year, the running Mean Temperature was 0.59°C higher than in 2019.
I am in the process of refining my calculations of Mean Temperature above Pre-Industrial. Durham Tees at Week 17 in 2019 was 1.75°C above Pre-Industrial; in 2020 it was 2.36 degrees above P-I and this year it is 1.51 degrees above. If you take into consideration that warming must proceed at a rate of 0.02174°C each year to reach the IPCC’s “Paris Limit” of 1.5 degrees above P-I in 2040, these calculations are consistent with the comparison figures in the previous paragraph.