Watch: Flooding in Killarney National Park leaves trails inaccessible 

The monthly rainfall total recorded at Valentia Observatory in Kerry was 255.9mm. This is 144% of its long-term average.

Drone footage of flooding at Killarney National Park. Picture: Valerie O'Sullivan

October was a very wet month with several instances of flooding and thunderstorm activity throughout.

Much of this showery, stormy weather impacted the south and west of the country.