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
10m
6.4 mm
5:40pm 06/05/2026
5:50pm 06/05/2026
1 in 1.3 years
76.4 %
20m
7.2 mm
5:40pm 06/05/2026
6:00pm 06/05/2026
1 in 1.1 years
92.25 %
30m
7.8 mm
5:40pm 06/05/2026
6:10pm 06/05/2026
1 in 1.0 years
96.18 %
60m
9.6 mm
5:10pm 06/05/2026
6:10pm 06/05/2026
1 in 1.0 years
98.14 %
90m
10.4 mm
5:40pm 06/05/2026
7:10pm 06/05/2026
1 in 1.0 years
98.87 %
120m
12.6 mm
5:20pm 06/05/2026
7:20pm 06/05/2026
1 in 1.0 years
97.93 %
3h
14.2 mm
4:30pm 06/05/2026
7:30pm 06/05/2026
1 in 1.0 years
98.31 %
4h
14.2 mm
3:00pm 06/05/2026
7:30pm 06/05/2026
1 in 1.0 years
99.68 %
6h
14.2 mm
1:30pm 06/05/2026
7:30pm 06/05/2026
1 in 1.0 years
99.96 %
9h
9.8 mm
9:30am 06/05/2026
6:30pm 06/05/2026
1 in 1 years
100.0 %
12h
14.2 mm
7:30am 06/05/2026
7:30pm 06/05/2026
1 in 1 years
100.0 %
18h
14.2 mm
1:30am 06/05/2026
7:30pm 06/05/2026
1 in 1 years
100.0 %
24h
14.2 mm
7:30pm 05/05/2026
7:30pm 06/05/2026
1 in 1 years
100.0 %
30h
14.2 mm
1:30pm 05/05/2026
7:30pm 06/05/2026
1 in 1 years
100.0 %
36h
14.2 mm
7:30am 05/05/2026
7:30pm 06/05/2026
1 in 1 years
100.0 %
48h
14.2 mm
7:30pm 04/05/2026
7:30pm 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.