10:00pm 04/05/2026 to 10:00pm 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
6.8 mm
5:50am 06/05/2026
6:00am 06/05/2026
1 in 1.0 years
99.91 %
20m
12.6 mm
5:50am 06/05/2026
6:10am 06/05/2026
1 in 1.0 years
98.52 %
30m
15.8 mm
5:40am 06/05/2026
6:10am 06/05/2026
1 in 1.0 years
98.01 %
60m
22.6 mm
5:10am 06/05/2026
6:10am 06/05/2026
1 in 1.0 years
95.42 %
90m
34.2 mm
4:40am 06/05/2026
6:10am 06/05/2026
1 in 1.3 years
77.02 %
120m
36.2 mm
4:20am 06/05/2026
6:20am 06/05/2026
1 in 1.2 years
81.22 %
3h
36.6 mm
4:20am 06/05/2026
7:20am 06/05/2026
1 in 1.1 years
89.94 %
4h
36.8 mm
4:20am 06/05/2026
8:50am 06/05/2026
1 in 1.0 years
95.58 %
6h
36.8 mm
3:40am 06/05/2026
9:40am 06/05/2026
1 in 1.0 years
97.76 %
9h
36.8 mm
4:20am 06/05/2026
1:20pm 06/05/2026
1 in 1.0 years
98.99 %
12h
37.6 mm
4:20am 06/05/2026
4:20pm 06/05/2026
1 in 1.0 years
99.57 %
18h
37.6 mm
4:00am 06/05/2026
10:00pm 06/05/2026
1 in 1.0 years
99.95 %
24h
37.6 mm
10:00pm 05/05/2026
10:00pm 06/05/2026
1 in 1 years
100.0 %
30h
37.6 mm
4:00pm 05/05/2026
10:00pm 06/05/2026
1 in 1 years
100.0 %
36h
37.6 mm
10:00am 05/05/2026
10:00pm 06/05/2026
1 in 1 years
100.0 %
48h
37.6 mm
10:00pm 04/05/2026
10:00pm 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.