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Light mode 9:45pm 09/06/2026 to 9:45pm 11/06/2026
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
5.0 mm
6:45pm 11/06/2026
7:00pm 11/06/2026
1 in 1 years
100.0 %
30m
9.0 mm
6:30pm 11/06/2026
7:00pm 11/06/2026
1 in 1.0 years
99.88 %
45m
11.0 mm
6:15pm 11/06/2026
7:00pm 11/06/2026
1 in 1.0 years
99.82 %
60m
12.0 mm
6:00pm 11/06/2026
7:00pm 11/06/2026
1 in 1.0 years
99.84 %
90m
14.0 mm
5:45pm 11/06/2026
7:15pm 11/06/2026
1 in 1.0 years
99.82 %
120m
15.0 mm
5:30pm 11/06/2026
7:30pm 11/06/2026
1 in 1.0 years
99.86 %
3h
19.0 mm
7:45am 11/06/2026
10:45am 11/06/2026
1 in 1.0 years
99.46 %
4h
23.0 mm
6:15am 11/06/2026
10:45am 11/06/2026
1 in 1.0 years
99.01 %
6h
28.0 mm
2:30pm 10/06/2026
8:30pm 10/06/2026
1 in 1.0 years
98.29 %
9h
39.0 mm
12:30pm 10/06/2026
9:30pm 10/06/2026
1 in 1.1 years
92.76 %
12h
40.0 mm
9:30am 10/06/2026
9:30pm 10/06/2026
1 in 1.0 years
95.51 %
18h
53.0 mm
2:00am 11/06/2026
8:00pm 11/06/2026
1 in 1.1 years
89.01 %
24h
75.0 mm
11:45am 10/06/2026
11:45am 11/06/2026
1 in 1.5 years
68.56 %
30h
90.0 mm
1:15pm 10/06/2026
7:15pm 11/06/2026
1 in 1.7 years
59.44 %
36h
94.0 mm
8:00am 10/06/2026
8:00pm 11/06/2026
1 in 1.6 years
61.9 %
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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