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Observations for this analysis :
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
2.6 mm
10:15am 15/06/2026
10:30am 15/06/2026
1 in 1 years
100.0 %
30m
4.8 mm
10:00am 15/06/2026
10:30am 15/06/2026
1 in 1.0 years
99.03 %
45m
6.0 mm
10:00am 15/06/2026
10:45am 15/06/2026
1 in 1.0 years
98.61 %
60m
6.4 mm
10:00am 15/06/2026
11:00am 15/06/2026
1 in 1.0 years
98.94 %
90m
8.2 mm
10:00am 15/06/2026
11:30am 15/06/2026
1 in 1.0 years
98.23 %
120m
9.6 mm
10:00am 15/06/2026
12:00pm 15/06/2026
1 in 1.0 years
97.09 %
3h
11.0 mm
9:45am 15/06/2026
12:45pm 15/06/2026
1 in 1.0 years
97.12 %
4h
11.4 mm
8:15am 15/06/2026
12:45pm 15/06/2026
1 in 1.0 years
98.6 %
6h
11.6 mm
9:00am 15/06/2026
3:00pm 15/06/2026
1 in 1.0 years
99.14 %
9h
11.8 mm
3:45am 15/06/2026
12:45pm 15/06/2026
1 in 1.0 years
99.8 %
12h
12.4 mm
12:45am 15/06/2026
12:45pm 15/06/2026
1 in 1.0 years
99.85 %
18h
16.0 mm
6:45pm 14/06/2026
12:45pm 15/06/2026
1 in 1.0 years
99.14 %
24h
16.2 mm
3:00pm 14/06/2026
3:00pm 15/06/2026
1 in 1.0 years
99.57 %
30h
16.2 mm
9:00am 14/06/2026
3:00pm 15/06/2026
1 in 1.0 years
99.8 %
36h
16.2 mm
3:00am 14/06/2026
3:00pm 15/06/2026
1 in 1.0 years
99.87 %
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.
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