7:30pm 04/05/2026 to 7:30pm 06/05/2026
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
3.2 mm
1:15am 05/05/2026
1:30am 05/05/2026
1 in 1 years
100.0 %
30m
5.4 mm
1:15am 05/05/2026
1:45am 05/05/2026
1 in 1.0 years
99.82 %
45m
6.4 mm
1:00am 05/05/2026
1:45am 05/05/2026
1 in 1.0 years
99.93 %
60m
7.0 mm
12:45am 05/05/2026
1:45am 05/05/2026
1 in 1 years
100.0 %
90m
8.4 mm
12:15am 05/05/2026
1:45am 05/05/2026
1 in 1 years
100.0 %
120m
9.4 mm
11:45pm 04/05/2026
1:45am 05/05/2026
1 in 1 years
100.0 %
3h
11.6 mm
12:00am 05/05/2026
3:00am 05/05/2026
1 in 1 years
100.0 %
4h
13.2 mm
10:30pm 04/05/2026
3:00am 05/05/2026
1 in 1 years
100.0 %
6h
14.6 mm
9:15pm 04/05/2026
3:15am 05/05/2026
1 in 1 years
100.0 %
9h
15.6 mm
7:45pm 04/05/2026
4:45am 05/05/2026
1 in 1 years
100.0 %
12h
15.6 mm
7:45pm 04/05/2026
7:45am 05/05/2026
1 in 1 years
100.0 %
18h
15.6 mm
7:45pm 04/05/2026
1:45pm 05/05/2026
1 in 1 years
100.0 %
24h
15.6 mm
7:45pm 04/05/2026
7:45pm 05/05/2026
1 in 1 years
100.0 %
30h
15.6 mm
7:45pm 04/05/2026
1:45am 06/05/2026
1 in 1 years
100.0 %
36h
15.6 mm
7:45pm 04/05/2026
7:45am 06/05/2026
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.