9:10pm 04/05/2026 to 9:10pm 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
6:40pm 06/05/2026
6:50pm 06/05/2026
1 in 1.8 years
54.92 %
20m
10.6 mm
6:40pm 06/05/2026
7:00pm 06/05/2026
1 in 2.3 years
42.88 %
30m
10.8 mm
6:40pm 06/05/2026
7:10pm 06/05/2026
1 in 1.7 years
58.93 %
60m
11.4 mm
6:20pm 06/05/2026
7:20pm 06/05/2026
1 in 1.2 years
82.3 %
90m
11.8 mm
6:40pm 06/05/2026
8:10pm 06/05/2026
1 in 1.1 years
92.13 %
120m
13.2 mm
6:40pm 06/05/2026
8:40pm 06/05/2026
1 in 1.1 years
92.44 %
3h
14.2 mm
6:10pm 06/05/2026
9:10pm 06/05/2026
1 in 1.0 years
96.32 %
4h
15.2 mm
4:40pm 06/05/2026
9:10pm 06/05/2026
1 in 1.0 years
98.45 %
6h
15.2 mm
3:10pm 06/05/2026
9:10pm 06/05/2026
1 in 1.0 years
99.55 %
9h
15.2 mm
12:10pm 06/05/2026
9:10pm 06/05/2026
1 in 1 years
100.0 %
12h
15.2 mm
9:10am 06/05/2026
9:10pm 06/05/2026
1 in 1 years
100.0 %
18h
15.2 mm
3:10am 06/05/2026
9:10pm 06/05/2026
1 in 1 years
100.0 %
24h
15.2 mm
9:10pm 05/05/2026
9:10pm 06/05/2026
1 in 1 years
100.0 %
30h
15.4 mm
3:10pm 05/05/2026
9:10pm 06/05/2026
1 in 1 years
100.0 %
36h
17.0 mm
9:10am 05/05/2026
9:10pm 06/05/2026
1 in 1 years
100.0 %
48h
22.4 mm
9:10pm 04/05/2026
9:10pm 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.