3:30pm 20/01/2026 to 3:30pm 22/01/2026
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
0.8 mm
7:50pm 20/01/2026
8:00pm 20/01/2026
1 in 1 years
100.0 %
20m
1.4 mm
7:40pm 20/01/2026
8:00pm 20/01/2026
1 in 1 years
100.0 %
30m
1.4 mm
7:30pm 20/01/2026
8:00pm 20/01/2026
1 in 1 years
100.0 %
60m
1.6 mm
7:20pm 20/01/2026
8:20pm 20/01/2026
1 in 1 years
100.0 %
90m
1.6 mm
6:30pm 20/01/2026
8:00pm 20/01/2026
1 in 1 years
100.0 %
120m
2.0 mm
6:20pm 20/01/2026
8:20pm 20/01/2026
1 in 1 years
100.0 %
3h
2.4 mm
5:40pm 20/01/2026
8:40pm 20/01/2026
1 in 1 years
100.0 %
4h
2.4 mm
5:40pm 20/01/2026
10:10pm 20/01/2026
1 in 1 years
100.0 %
6h
2.4 mm
5:40pm 20/01/2026
11:40pm 20/01/2026
1 in 1 years
100.0 %
9h
2.4 mm
5:40pm 20/01/2026
2:40am 21/01/2026
1 in 1 years
100.0 %
12h
2.4 mm
5:40pm 20/01/2026
5:40am 21/01/2026
1 in 1 years
100.0 %
18h
2.4 mm
5:40pm 20/01/2026
11:40am 21/01/2026
1 in 1 years
100.0 %
24h
2.4 mm
5:40pm 20/01/2026
5:40pm 21/01/2026
1 in 1 years
100.0 %
30h
2.4 mm
5:40pm 20/01/2026
11:40pm 21/01/2026
1 in 1 years
100.0 %
36h
2.6 mm
5:40pm 20/01/2026
5:40am 22/01/2026
1 in 1 years
100.0 %
48h
2.8 mm
3:30pm 20/01/2026
3:30pm 22/01/2026
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.