December rainfall recorded at Cornwall House was 51.3mm, well below the average for the month of 88.8mm. Rainfall for the year was 1,037.8mm,well above the annual average of 820.3mm, making 2025 the seventh wettest year since records were started in 1929.

This century there have been eight of the nine wettest years.13th May with 30.1mm of rain was the eighth wettest May day on record.23 November with 58.0mm of rain was the wettest November day on record and the seventh wettest day for any month of the year.March with 119.4mm of rain was the eighth wettest March on record.September with 167.9mm of rain was the fourth wettest September on record.