Exceptionally wet season rainfalls in Darwin indicates more rainfalls

April 18, 2017

Darwin has had to date one of it's wettest wet season on record and this does indicate more months of above average rainfalls in our regions. A listing of wet periods from September to a very wet April which happened this year was tabulated. 

There were nine previous cases in the last 147 years at Darwin when September to April was exceptionally wet. These were in 1891, 1910, 1917, 1953, 1955, 1975, 1989, 1999, and 2011. Most of these cases led to excessive rainfalls from about October to February in our regions. Winter rainfalls were above average in our regions but not as wet as last year, July to September this year to be warmer than July to September last year. 

Darwin this month had it's coldest April day on record; the maximum temperature reached only 21.9. There were only three colder days overall in 135 years of record. Two were in July 1968, the other in June 1904. A minimum temperature of 18.0 on 11th April was the lowest in April since 1948 which was a relatively dry winter in our regions whilst October to December 1948 was wetter than average. 

The current synoptic charts is still dominated by strong high pressure systems which means more warmer than average days. An upper level disturbance is evident over NW of WA and more rain is expected in Darwin. The upper level disturbance will lead to some rain in our regions about 24th April. 

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