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9:45pm 10/05/2026 to 9:45pm 12/05/2026
You can find out more about Design Rainfall and IFD here.
Observations for this analysis :
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
6.0 mm
6:45pm 12/05/2026
7:00pm 12/05/2026
1 in 1 years
100.0 %
30m
9.0 mm
6:30pm 12/05/2026
7:00pm 12/05/2026
1 in 1 years
100.0 %
45m
10.0 mm
6:30pm 12/05/2026
7:15pm 12/05/2026
1 in 1 years
100.0 %
60m
10.0 mm
6:15pm 12/05/2026
7:15pm 12/05/2026
1 in 1 years
100.0 %
90m
11.0 mm
6:15pm 12/05/2026
7:45pm 12/05/2026
1 in 1 years
100.0 %
120m
12.0 mm
6:30pm 12/05/2026
8:30pm 12/05/2026
1 in 1 years
100.0 %
3h
13.0 mm
6:15pm 12/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
4h
13.0 mm
4:45pm 12/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
6h
13.0 mm
3:15pm 12/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
9h
13.0 mm
12:15pm 12/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
12h
13.0 mm
9:15am 12/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
18h
14.0 mm
3:15am 12/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
24h
17.0 mm
9:15pm 11/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
30h
17.0 mm
2:30pm 11/05/2026
8:30pm 12/05/2026
1 in 1 years
100.0 %
36h
20.0 mm
9:15am 11/05/2026
9:15pm 12/05/2026
1 in 1 years
100.0 %
Note: A '1 in 1.0 years' estimate means that it is almost certain to occur at least once in a year, and could occur much more than once per year on average. For smaller values like this the Annual Recurrance Interval (ARI) may be of more relevance, but it is complex to calculate for common events.
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