A timeline of notable weather events and extremes that have taken place in Ireland on October 30 throughout history.

1977: 36 mm of rainfall recorded at Phoenix Park, Dublin, a record high for the date.

1989: The River Clare in County Galway bursts its banks, flooding farmland and roads.

2018: Dublin Airport records -4.7 °C, the lowest October minimum since 1941.

2020: Met Éireann names Storm Aiden and issues Status Orange wind warnings for multiple counties.

2023: Met Éireann issues an advisory ahead of Storm Ciarán, warning of very unsettled, wet, and windy conditions, with heavy rain and possible flooding.