11:20am 31/05/2026 to 11:20am 02/06/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
10m
3.2 mm
6:40am 02/06/2026
6:50am 02/06/2026
1 in 1.0 years
99.59 %
20m
5.2 mm
5:50am 02/06/2026
6:10am 02/06/2026
1 in 1.0 years
98.29 %
30m
6.4 mm
5:40am 02/06/2026
6:10am 02/06/2026
1 in 1.0 years
97.81 %
60m
10.2 mm
5:50am 02/06/2026
6:50am 02/06/2026
1 in 1.1 years
90.4 %
90m
12.4 mm
5:20am 02/06/2026
6:50am 02/06/2026
1 in 1.1 years
88.43 %
120m
17.2 mm
4:50am 02/06/2026
6:50am 02/06/2026
1 in 1.6 years
64.39 %
3h
19.6 mm
4:50am 02/06/2026
7:50am 02/06/2026
1 in 1.5 years
66.99 %
4h
23.4 mm
3:20am 02/06/2026
7:50am 02/06/2026
1 in 1.5 years
65.01 %
6h
25.0 mm
2:10am 02/06/2026
8:10am 02/06/2026
1 in 1.4 years
70.02 %
9h
27.2 mm
11:10pm 01/06/2026
8:10am 02/06/2026
1 in 1.3 years
79.25 %
12h
28.2 mm
8:10pm 01/06/2026
8:10am 02/06/2026
1 in 1.1 years
87.76 %
18h
29.6 mm
2:10pm 01/06/2026
8:10am 02/06/2026
1 in 1.1 years
94.14 %
24h
31.0 mm
11:20am 01/06/2026
11:20am 02/06/2026
1 in 1.0 years
96.26 %
30h
32.2 mm
5:20am 01/06/2026
11:20am 02/06/2026
1 in 1.0 years
97.36 %
36h
32.8 mm
11:20pm 31/05/2026
11:20am 02/06/2026
1 in 1.0 years
98.29 %
48h
33.0 mm
11:20am 31/05/2026
11:20am 02/06/2026
1 in 1.0 years
99.01 %
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.

