La Niña has lived up to its name this past summer for much of eastern Australia, with the NSW Mid North Coast copping a drenching.

The lead up to summer was relatively dry for the Mid North Coast, with all mainland weather stations recording less than half the monthly average for November. Things radically changed in December, the start of a very wet three months.

Dorrigo went from 32mm of rain in November to a whopping 772mm in December. That was Dorrigo's wettest December on record. Combining the 311mm in January and 425mm in February, Dorrigo just had its wettest summer on record.

Coffs Harbour also just had its wettest summer on record, albeit with a short history. The weather station at the airport just recorded its first summer with over 1000mm of rain, with 1225mm in the gauge. Next best was last summer with 925mm.

Image: accumulated rainfall to Friday, March 5th at 11pm AEDT, using the ECMWF model.

La Niña is slowly on the decline, however the Mid North Coast is likely to see this wetter than usual period continue into early autumn. With catchments saturated, any heavy rain is likely to cause flooding for a while yet.