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
5:00pm 06/05/2026
5:15pm 06/05/2026
1 in 1.0 years
98.43 %
30m
5.2 mm
5:00pm 06/05/2026
5:30pm 06/05/2026
1 in 1.0 years
95.48 %
45m
6.4 mm
5:00pm 06/05/2026
5:45pm 06/05/2026
1 in 1.1 years
95.23 %
60m
7.2 mm
5:00pm 06/05/2026
6:00pm 06/05/2026
1 in 1.0 years
95.84 %
90m
9.2 mm
4:45pm 06/05/2026
6:15pm 06/05/2026
1 in 1.1 years
93.73 %
120m
10.0 mm
4:45pm 06/05/2026
6:45pm 06/05/2026
1 in 1.0 years
95.83 %
3h
10.8 mm
4:15pm 06/05/2026
7:15pm 06/05/2026
1 in 1.0 years
98.39 %
4h
10.8 mm
2:45pm 06/05/2026
7:15pm 06/05/2026
1 in 1.0 years
99.77 %
6h
10.8 mm
1:15pm 06/05/2026
7:15pm 06/05/2026
1 in 1.0 years
99.98 %
9h
10.8 mm
10:15am 06/05/2026
7:15pm 06/05/2026
1 in 1 years
100.0 %
12h
10.8 mm
7:15am 06/05/2026
7:15pm 06/05/2026
1 in 1 years
100.0 %
18h
10.8 mm
1:15am 06/05/2026
7:15pm 06/05/2026
1 in 1 years
100.0 %
24h
10.8 mm
7:15pm 05/05/2026
7:15pm 06/05/2026
1 in 1 years
100.0 %
30h
10.8 mm
1:15pm 05/05/2026
7:15pm 06/05/2026
1 in 1 years
100.0 %
36h
10.8 mm
7:15am 05/05/2026
7:15pm 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.