MO daily gridded rainfall and temperature for the UK (1960-2011) [UKCP09]
(UKCP09 gridded observation data sets )

The Met Office archive of daily observations has been used as the main input to the analysis. Geographical effects such as latitude and longitude, altitude, coastal influence, and the effect of urban land use were incorporated through normalisation with respect to monthly 1961-1990 climate normals and, in the case of temperature, a regression model. Station values were then interpolated onto the regular grid using inverse distance weighted interpolation.
Both the input station data, and the gridded output have been quality checked. Checking of the output focussed on an analysis of regression residuals for temperature, and on visual inspection of the grids for rainfall. The methods used to generate the daily grids are described I more detail in [1], [2] and [3].

[1] Perry MC, Hollis DM. 2005a. The development of a new set of long-term average climate averages for the UK. International Journal of Climatology 25: 1023-1039.
[2] Perry MC, Hollis DM. 2005b. The generation of monthly gridded datasets for a range of climatic variables over the UK. International Journal of Climatology 25: 1041-1054.
[3] Perry MC, Hollis DM and Elms M. 2009. The generation of daily gridded datasets of temperature and rainfall for the UK. National Information Centre. Climate Memorandum No 24. Available at: http://www.metoffice.gov.uk/binaries/content/assets/mohippo/pdf/uk-climate/papers/cm24_generation_of_daily_gridded_datasets.pdf [Access 02/02/2017]