5:00am 09/11/2025 to 5:00am 11/11/2025
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
10.8 mm
4:50pm 10/11/2025
5:00pm 10/11/2025
1 in 1.0 years
99.83 %
20m
20.4 mm
4:50pm 10/11/2025
5:10pm 10/11/2025
1 in 1.0 years
98.03 %
30m
26.6 mm
4:50pm 10/11/2025
5:20pm 10/11/2025
1 in 1.0 years
95.92 %
60m
31.6 mm
4:40pm 10/11/2025
5:40pm 10/11/2025
1 in 1.0 years
97.85 %
90m
32.2 mm
4:40pm 10/11/2025
6:10pm 10/11/2025
1 in 1.0 years
98.6 %
120m
37.4 mm
2:40pm 09/11/2025
4:40pm 09/11/2025
1 in 1.0 years
97.55 %
3h
37.4 mm
1:40pm 09/11/2025
4:40pm 09/11/2025
1 in 1.0 years
98.42 %
4h
37.4 mm
12:10pm 09/11/2025
4:40pm 09/11/2025
1 in 1.0 years
98.77 %
6h
37.4 mm
10:40am 09/11/2025
4:40pm 09/11/2025
1 in 1.0 years
99.03 %
9h
52.0 mm
1:30pm 09/11/2025
10:30pm 09/11/2025
1 in 1.0 years
96.06 %
12h
52.8 mm
12:00pm 09/11/2025
12:00am 10/11/2025
1 in 1.0 years
97.08 %
18h
64.0 mm
10:40am 09/11/2025
4:40am 10/11/2025
1 in 1.0 years
95.6 %
24h
64.2 mm
9:10am 09/11/2025
9:10am 10/11/2025
1 in 1.0 years
97.58 %
30h
97.6 mm
2:40pm 09/11/2025
8:40pm 10/11/2025
1 in 1.2 years
84.84 %
36h
97.8 mm
2:40pm 09/11/2025
2:40am 11/11/2025
1 in 1.1 years
89.15 %
48h
97.8 mm
5:00am 09/11/2025
5:00am 11/11/2025
1 in 1.1 years
95.06 %
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.