The Peninsula records highest May rainfall in 20 years
The Peninsula has recorded its highest May rainfall in 20 years.
The May total by Friday morning, May 30, was 360mm, according to figures supplied by Mr Jim Morrison of Umina.
This is 50 per cent more than the previous highest May rainfall of 241.7mm recorded last year and more than double the next highest figure of 178.3mm recorded in May 2009.
It was more than four times the May average of 83mm.
The rainfall recorded for the 24 hours to 9am on Friday, May 23, was 158.9mm, the third highest daily amount recorded in 20 years.
The two days with more rain were February 19, 2020, with 161mm and January 19, 2015, with 165mm.
Four days earlier on May 19, a total of 71.5mm was recorded - the two days accounting for almost two thirds of the month's rainfall.
Rain was recorded on 19 days of the month.
The total rainfall for the year to the end of May was 917.3mm, a third more than the average of 688mm.
More details, including daily rainfall figures, are available online at http://penne.ws/Rain.
SOURCE:
Spreadsheet, 30 May 2025
Jim Morrison, Umina