UK degree-day data Classic UK regional data Recent actual monthly heating degree days for the 18 standard UK reporting regions are available here. Twenty-year average tables (used for budget forecasting) can be downloaded here. These are the values as at the end of 2022. Standard degree-day values, which are used for normalisation of consumption between regions or through time, can be viewed here UK reporting regions The map below shows the official standard regional designations from the 1970s. Region 18 (North West Scotland) was added by Degree Days Direct Limited in 1992.