Malin Head in Co Donegal experienced the wettest August day since 1955 on the 22nd of last month, according to the latest monthly weather summary data from Met Éireann.
That was the day when there was widespread flooding of homes, businesses and infrastructure in the northwest of the country, after 77.2mm of rain fell over the course of the day, 63mm of it in just six hours.
In total 181% of the station's average August rainfall fell on that day alone.
The Met Éireann weather seasonal summary also shows that Malin Head experienced the wettest summer in 19 years, with 364.8mm or 148% of normal average rainfall for June, July and August falling over the period.
The deluge accounted for a fifth of Malin Head's seasonal total.
Around the rest of the country, nearly all weather stations recorded rainfall totals above their long-term average over the course of the three months.
About half of stations had their wettest summer in five years.
The majority of summer season temperatures were slightly below their average, with scattered stations in the east, midlands and north reporting on or slightly above long term average temperatures.
However, August was cooler, with all mean air temperatures across the country below their long-term average for the month.