Dark mode
Light mode12:20am 14/06/2026 to 12:20am 16/06/2026
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
5.0 mm
4:50pm 15/06/2026
5:00pm 15/06/2026
1 in 1.3 years
77.71 %
20m
6.6 mm
10:10pm 15/06/2026
10:30pm 15/06/2026
1 in 1.3 years
79.28 %
30m
7.0 mm
7:40pm 15/06/2026
8:10pm 15/06/2026
1 in 1.1 years
88.16 %
60m
13.2 mm
10:10pm 15/06/2026
11:10pm 15/06/2026
1 in 2.0 years
50.74 %
90m
18.0 mm
10:10pm 15/06/2026
11:40pm 15/06/2026
1 in 2.9 years
34.28 %
120m
22.6 mm
10:10pm 15/06/2026
12:10am 16/06/2026
1 in 4.1 years
24.11 %
3h
26.6 mm
9:20pm 15/06/2026
12:20am 16/06/2026
1 in 4.2 years
24.02 %
4h
39.4 mm
7:40pm 15/06/2026
12:10am 16/06/2026
1 in 8.8 years
11.37 %
6h
50.4 mm
6:20pm 15/06/2026
12:20am 16/06/2026
1 in 13.7 years
7.3 %
9h
59.8 mm
3:20pm 15/06/2026
12:20am 16/06/2026
1 in 13.7 years
7.29 %
12h
64.4 mm
12:20pm 15/06/2026
12:20am 16/06/2026
1 in 11.9 years
8.43 %
18h
64.4 mm
6:20am 15/06/2026
12:20am 16/06/2026
1 in 7.5 years
13.32 %
24h
64.4 mm
12:20am 15/06/2026
12:20am 16/06/2026
1 in 5.8 years
17.34 %
30h
64.4 mm
6:20pm 14/06/2026
12:20am 16/06/2026
1 in 4.6 years
21.66 %
36h
64.4 mm
12:20pm 14/06/2026
12:20am 16/06/2026
1 in 4.1 years
24.59 %
48h
64.4 mm
12:20am 14/06/2026
12:20am 16/06/2026
1 in 3.4 years
29.74 %
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.
Install
