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Light mode12:15am 14/06/2026 to 12:15am 16/06/2026
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
9.2 mm
10:15pm 14/06/2026
10:30pm 14/06/2026
1 in 1.7 years
60.02 %
30m
15.8 mm
10:15pm 14/06/2026
10:45pm 14/06/2026
1 in 2.8 years
35.5 %
45m
17.4 mm
10:15pm 14/06/2026
11:00pm 14/06/2026
1 in 2.4 years
41.95 %
60m
17.8 mm
10:15pm 14/06/2026
11:15pm 14/06/2026
1 in 2.0 years
50.0 %
90m
17.8 mm
9:45pm 14/06/2026
11:15pm 14/06/2026
1 in 1.5 years
65.12 %
120m
17.8 mm
9:15pm 14/06/2026
11:15pm 14/06/2026
1 in 1.4 years
73.55 %
3h
18.8 mm
9:45pm 14/06/2026
12:45am 15/06/2026
1 in 1.2 years
81.44 %
4h
18.8 mm
8:15pm 14/06/2026
12:45am 15/06/2026
1 in 1.1 years
90.63 %
6h
18.8 mm
6:45pm 14/06/2026
12:45am 15/06/2026
1 in 1.1 years
95.02 %
9h
21.6 mm
10:00pm 14/06/2026
7:00am 15/06/2026
1 in 1.1 years
93.48 %
12h
23.2 mm
9:45pm 14/06/2026
9:45am 15/06/2026
1 in 1.1 years
93.83 %
18h
27.0 mm
7:30pm 14/06/2026
1:30pm 15/06/2026
1 in 1.1 years
91.33 %
24h
27.0 mm
1:30pm 14/06/2026
1:30pm 15/06/2026
1 in 1.1 years
95.11 %
30h
27.0 mm
7:30am 14/06/2026
1:30pm 15/06/2026
1 in 1.0 years
96.36 %
36h
27.0 mm
1:30am 14/06/2026
1:30pm 15/06/2026
1 in 1.0 years
97.44 %
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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