Wet Christmas needed to reach rainfall average

Rain clearing over Ocean Beach: Image: Karina Pairet Cuerden.

Over 300mm of rain will need to fall in December for the Woy Woy Peninsula to reach its average annual rainfall total for 2018.

The most rain recorded so far this year was 246mm in October. The total for November was 108mm, which was 8mm above the November average.

A relatively dry January (34mm) and significantly below average rainfall during months of March, April. May, June. Jury and AL”ust left a 30 per cent cumulative rainfall deficit for the year with one month to go. according to the rainfall records of Mr Jim Morrison from Umina.

Only four of the last 11 months have seen over 100mm of rainfall recorded; February, June, October and November. The lowest total monthly rainfall recorded for the year was in when only 6mm recorded, by May followed by July when 24mm fell.  The east coast low experienced on November 28 and 29 was the only factor that enabled the Peninsula to reach its average rainfall for November when 19 out Of 30 days were over 70mm fell in that 48 hour period.

SOURCE: Spreadsheet, 30 Nov 2018 Jun Morrison, Umina

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