1:30am 30/05/2026 to 1:30am 01/06/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
7.6 mm
11:15pm 31/05/2026
11:30pm 31/05/2026
1 in 1.0 years
95.26 %
30m
8.8 mm
11:00pm 31/05/2026
11:30pm 31/05/2026
1 in 1.0 years
98.67 %
45m
9.4 mm
9:45pm 31/05/2026
10:30pm 31/05/2026
1 in 1.0 years
99.66 %
60m
9.8 mm
9:30pm 31/05/2026
10:30pm 31/05/2026
1 in 1.0 years
99.92 %
90m
14.2 mm
10:00pm 31/05/2026
11:30pm 31/05/2026
1 in 1.0 years
98.24 %
120m
19.2 mm
9:30pm 31/05/2026
11:30pm 31/05/2026
1 in 1.1 years
89.46 %
3h
20.8 mm
9:00pm 31/05/2026
12:00am 01/06/2026
1 in 1.1 years
95.02 %
4h
23.4 mm
9:00pm 31/05/2026
1:30am 01/06/2026
1 in 1.0 years
96.47 %
6h
23.6 mm
7:30pm 31/05/2026
1:30am 01/06/2026
1 in 1.0 years
98.71 %
9h
25.0 mm
4:30pm 31/05/2026
1:30am 01/06/2026
1 in 1.0 years
99.75 %
12h
26.8 mm
1:30pm 31/05/2026
1:30am 01/06/2026
1 in 1.0 years
99.84 %
18h
30.0 mm
7:30am 31/05/2026
1:30am 01/06/2026
1 in 1.0 years
99.93 %
24h
33.4 mm
12:30am 31/05/2026
12:30am 01/06/2026
1 in 1.0 years
99.91 %
30h
38.8 mm
7:15pm 30/05/2026
1:15am 01/06/2026
1 in 1.0 years
99.7 %
36h
40.4 mm
1:30pm 30/05/2026
1:30am 01/06/2026
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.

