<Li> Altnaharra, Highland (30 Dec 1995) </Li> <P> A disputed temperature of 42 ° C was set at an airfield in Wisley, Surrey on 18 July 2006 . It has been suggested that the reading for this temperature should in fact have been 32 ° C. It is worth noting that the Met Office expected temperatures to surpass the August 2003 record during the July 2006 heatwave, and it is still speculated that both heatwaves did set higher temperatures than those officially recorded . </P> <P> Central estimates produced by the Met Office predict average annual temperature to increase by 2 ° C (4 ° F) and the warmest summer day to increase by 3 ° C (6 ° F) by the 2050s . Average winter rainfall is also likely to increase and most areas will see a slight decrease in annual rainfall . </P> <P> According to the Met Office, in the UK, the decade from 2000 - 2009 was the warmest since instrumental record dating started in 1850 . </P>

Describe the pattern of rainfall in the uk