At the monthly scale, the mean monthly maximum or mean monthly minimum temperature maps are calculated as monthly means from the daily station maximum or minmum observations for the month, which are ...

These station data are then analysed onto 0.25x0.25 and 0.05x0.05 degree grids. The national map shown on the web is based on the 0.05x0.05 degree grid, sub-sampled at every fifth point to give an ...