Dark mode
Light mode 5:15am 13/06/2026 to 5:15am 15/06/2026
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
10.0 mm
1:00am 15/06/2026
1:15am 15/06/2026
1 in 1.1 years
94.19 %
30m
15.5 mm
12:45am 15/06/2026
1:15am 15/06/2026
1 in 1.1 years
87.94 %
45m
21.0 mm
12:30am 15/06/2026
1:15am 15/06/2026
1 in 1.3 years
75.43 %
60m
26.0 mm
12:15am 15/06/2026
1:15am 15/06/2026
1 in 1.5 years
66.7 %
90m
32.5 mm
11:45pm 14/06/2026
1:15am 15/06/2026
1 in 1.7 years
59.77 %
120m
41.0 mm
11:15pm 14/06/2026
1:15am 15/06/2026
1 in 2.1 years
46.72 %
3h
51.5 mm
11:15pm 14/06/2026
2:15am 15/06/2026
1 in 2.6 years
38.92 %
4h
54.0 mm
10:45pm 14/06/2026
3:15am 15/06/2026
1 in 2.0 years
49.58 %
6h
53.5 mm
9:00pm 14/06/2026
3:00am 15/06/2026
1 in 1.6 years
62.13 %
9h
53.5 mm
6:00pm 14/06/2026
3:00am 15/06/2026
1 in 1.3 years
75.73 %
12h
53.5 mm
3:00pm 14/06/2026
3:00am 15/06/2026
1 in 1.2 years
86.47 %
18h
53.5 mm
9:00am 14/06/2026
3:00am 15/06/2026
1 in 1.1 years
93.63 %
24h
53.5 mm
3:00am 14/06/2026
3:00am 15/06/2026
1 in 1.0 years
96.5 %
30h
53.5 mm
9:00pm 13/06/2026
3:00am 15/06/2026
1 in 1.0 years
98.05 %
36h
53.5 mm
3:00pm 13/06/2026
3:00am 15/06/2026
1 in 1.0 years
98.47 %
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.
Install
