How is data for your postcode calculated

Climate data is typically presented in gridded squares that make up a large surface area. The grids used in this model are 12km by 12km. This level of detail is able to capture many of the varied climate conditions across the UK's diverse geography far better than other, broader-scale models.

Each UK postcode has been matched to its nearest 12km-square grid. The results displayed for your area represent an average (mean) for the grids closest to that location, as long as they are no further than 34km away. In most cases a grid has been averaged with its eight nearest grids, except along irregular coastlines and small islands.

Averaging means that the figures displayed are never for a single grid alone. While natural variability between grid areas is normal, this process minimises dramatic differences that may be down to chance.