2:30pm 17/01/2026 to 2:30pm 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
7.0 mm
11:15pm 17/01/2026
11:30pm 17/01/2026
1 in 1.0 years
99.23 %
30m
9.0 mm
11:15pm 17/01/2026
11:45pm 17/01/2026
1 in 1.0 years
99.76 %
45m
10.0 mm
11:15pm 17/01/2026
12:00am 18/01/2026
1 in 1.0 years
99.82 %
60m
10.0 mm
11:00pm 17/01/2026
12:00am 18/01/2026
1 in 1.0 years
99.91 %
90m
16.0 mm
10:15pm 17/01/2026
11:45pm 17/01/2026
1 in 1.0 years
99.07 %
120m
17.0 mm
10:00pm 17/01/2026
12:00am 18/01/2026
1 in 1.0 years
99.15 %
3h
21.0 mm
10:00pm 17/01/2026
1:00am 18/01/2026
1 in 1.0 years
98.62 %
4h
23.0 mm
9:30pm 17/01/2026
2:00am 18/01/2026
1 in 1.0 years
98.58 %
6h
24.0 mm
9:30pm 17/01/2026
3:30am 18/01/2026
1 in 1.0 years
98.63 %
9h
26.0 mm
6:30pm 17/01/2026
3:30am 18/01/2026
1 in 1.0 years
98.62 %
12h
26.0 mm
3:30pm 17/01/2026
3:30am 18/01/2026
1 in 1.0 years
98.9 %
18h
26.0 mm
2:45pm 17/01/2026
8:45am 18/01/2026
1 in 1.0 years
99.34 %
24h
28.0 mm
6:15pm 17/01/2026
6:15pm 18/01/2026
1 in 1.0 years
99.37 %
30h
28.0 mm
2:45pm 17/01/2026
8:45pm 18/01/2026
1 in 1.0 years
99.67 %
36h
28.0 mm
2:45pm 17/01/2026
2:45am 19/01/2026
1 in 1.0 years
99.79 %
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.