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
15.0 mm
5:30pm 06/05/2026
5:45pm 06/05/2026
1 in 1.1 years
95.15 %
30m
24.8 mm
5:30pm 06/05/2026
6:00pm 06/05/2026
1 in 1.1 years
87.55 %
45m
27.2 mm
5:15pm 06/05/2026
6:00pm 06/05/2026
1 in 1.1 years
89.86 %
60m
27.4 mm
5:15pm 06/05/2026
6:15pm 06/05/2026
1 in 1.1 years
93.11 %
90m
27.4 mm
4:45pm 06/05/2026
6:15pm 06/05/2026
1 in 1.0 years
95.7 %
120m
27.4 mm
4:15pm 06/05/2026
6:15pm 06/05/2026
1 in 1.0 years
96.48 %
3h
27.2 mm
3:00pm 06/05/2026
6:00pm 06/05/2026
1 in 1.0 years
97.48 %
4h
27.4 mm
1:45pm 06/05/2026
6:15pm 06/05/2026
1 in 1.0 years
98.11 %
6h
27.2 mm
12:00pm 06/05/2026
6:00pm 06/05/2026
1 in 1.0 years
98.34 %
9h
27.2 mm
9:00am 06/05/2026
6:00pm 06/05/2026
1 in 1.0 years
98.58 %
12h
27.2 mm
6:00am 06/05/2026
6:00pm 06/05/2026
1 in 1.0 years
98.8 %
18h
27.2 mm
12:00am 06/05/2026
6:00pm 06/05/2026
1 in 1.0 years
99.18 %
24h
27.2 mm
6:00pm 05/05/2026
6:00pm 06/05/2026
1 in 1.0 years
99.5 %
30h
27.2 mm
12:00pm 05/05/2026
6:00pm 06/05/2026
1 in 1.0 years
99.76 %
36h
27.2 mm
6:00am 05/05/2026
6:00pm 06/05/2026
1 in 1.0 years
99.81 %
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.