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
6.2 mm
10:15pm 14/06/2026
10:30pm 14/06/2026
1 in 1.0 years
99.93 %
30m
9.8 mm
8:45pm 14/06/2026
9:15pm 14/06/2026
1 in 1.0 years
99.44 %
45m
10.6 mm
9:45pm 14/06/2026
10:30pm 14/06/2026
1 in 1.0 years
99.82 %
60m
14.2 mm
10:15pm 14/06/2026
11:15pm 14/06/2026
1 in 1.0 years
98.66 %
90m
18.6 mm
9:45pm 14/06/2026
11:15pm 14/06/2026
1 in 1.0 years
96.72 %
120m
22.8 mm
8:45pm 14/06/2026
10:45pm 14/06/2026
1 in 1.1 years
93.62 %
3h
29.6 mm
8:45pm 14/06/2026
11:45pm 14/06/2026
1 in 1.1 years
87.74 %
4h
36.6 mm
8:45pm 14/06/2026
1:15am 15/06/2026
1 in 1.2 years
82.69 %
6h
44.2 mm
8:15pm 14/06/2026
2:15am 15/06/2026
1 in 1.3 years
75.04 %
9h
50.0 mm
8:15pm 14/06/2026
5:15am 15/06/2026
1 in 1.3 years
78.07 %
12h
50.0 mm
5:15pm 14/06/2026
5:15am 15/06/2026
1 in 1.1 years
87.85 %
18h
50.0 mm
11:15am 14/06/2026
5:15am 15/06/2026
1 in 1.1 years
95.11 %
24h
50.0 mm
5:15am 14/06/2026
5:15am 15/06/2026
1 in 1.0 years
97.32 %
30h
50.0 mm
11:15pm 13/06/2026
5:15am 15/06/2026
1 in 1.0 years
98.4 %
36h
50.0 mm
5:15pm 13/06/2026
5:15am 15/06/2026
1 in 1.0 years
98.76 %
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
