5:00pm 17/01/2026 to 5:00pm 19/01/2026
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
15m
1.6 mm
10:30am 19/01/2026
10:45am 19/01/2026
1 in 1 years
100.0 %
30m
2.2 mm
10:15am 19/01/2026
10:45am 19/01/2026
1 in 1 years
100.0 %
45m
2.8 mm
2:45pm 19/01/2026
3:30pm 19/01/2026
1 in 1 years
100.0 %
60m
3.4 mm
2:45pm 19/01/2026
3:45pm 19/01/2026
1 in 1 years
100.0 %
90m
5.0 mm
9:30am 19/01/2026
11:00am 19/01/2026
1 in 1 years
100.0 %
120m
6.0 mm
8:45am 19/01/2026
10:45am 19/01/2026
1 in 1 years
100.0 %
3h
8.0 mm
9:30am 19/01/2026
12:30pm 19/01/2026
1 in 1 years
100.0 %
4h
11.0 mm
7:00am 19/01/2026
11:30am 19/01/2026
1 in 1 years
100.0 %
6h
13.8 mm
9:30am 19/01/2026
3:30pm 19/01/2026
1 in 1 years
100.0 %
9h
19.6 mm
6:45am 19/01/2026
3:45pm 19/01/2026
1 in 1 years
100.0 %
12h
21.2 mm
3:45am 19/01/2026
3:45pm 19/01/2026
1 in 1 years
100.0 %
18h
21.2 mm
9:45pm 18/01/2026
3:45pm 19/01/2026
1 in 1 years
100.0 %
24h
21.2 mm
3:45pm 18/01/2026
3:45pm 19/01/2026
1 in 1 years
100.0 %
30h
22.0 mm
9:45am 18/01/2026
3:45pm 19/01/2026
1 in 1 years
100.0 %
36h
22.4 mm
4:45am 18/01/2026
4:45pm 19/01/2026
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.