Average rainfall figures (1st October to March 31st)

This viewer allows you to find rainfall figures to support the required calculation of storage capacity for the Water Resources (Control of Agricultural Pollution)(Wales) Regulations 2021. Average rainfall figures (1st October to March 31st) and (1st October to 28th February) are provided on to a 1km grid to reflect the wide geography of Wales and provide accurate localised data. Figures are based upon the met office’s 1981 – 2010 averaging period. For coastal areas please use the nearest figure, if none is provided.