Rain totals 1022mm

A total of 1022mm of rainfall fell on the Peninsula in the last calendar year, according to Woy Woy resident Mr Jim Morrison.

This was 84 per cent of the average annual rainfall of 1215mm.

Rainfall for December was 86.1mm, 10 per cent above the December average of 77.8.

Mr Morrison supplied graphs for the year's rainfall, which showed monthly totals compared to the average and which showed cumulative rainfall totals.

The lowest actual rainfall recorded was for April with a total of 12mm less than one 10th the monthly average of 126.5mm.

The highest actual rainfall was in September with 175.5mm compared to a monthly average of 68.6mm.

Six months last year had higher than monthly average rainfall. They were January, February, July, August, September and December.

The graph of cumulative totals showed actual rainfall compared to average totals.

It showed that the months of April and May were the months that accounted for the greatest deficit compared to average.

The deficit for April was 114.5mm.

In May, the deficit was 82.3mm, with an actual rainfall of 40.5mm compared to an average of 122.8mm.

If these two months had have had average rainfall, the total for the year would have been 1218mm, almost exactly average.

Mark Snell, 12 Jan 2007