7:10pm 14/01/2026 to 7:10pm 16/01/2026
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
10m
15.6 mm
9:00am 15/01/2026
9:10am 15/01/2026
1 in 1.0 years
96.32 %
20m
20.2 mm
9:00am 15/01/2026
9:20am 15/01/2026
1 in 1.0 years
98.92 %
30m
24.8 mm
9:00am 15/01/2026
9:30am 15/01/2026
1 in 1.0 years
98.71 %
60m
49.6 mm
9:00am 15/01/2026
10:00am 15/01/2026
1 in 1.4 years
70.72 %
90m
58.4 mm
9:00am 15/01/2026
10:30am 15/01/2026
1 in 1.5 years
66.65 %
120m
61.0 mm
8:50am 15/01/2026
10:50am 15/01/2026
1 in 1.4 years
69.85 %
3h
62.2 mm
8:50am 15/01/2026
11:50am 15/01/2026
1 in 1.3 years
76.63 %
4h
62.2 mm
8:50am 15/01/2026
1:20pm 15/01/2026
1 in 1.2 years
84.42 %
6h
62.2 mm
8:50am 15/01/2026
2:50pm 15/01/2026
1 in 1.1 years
87.92 %
9h
62.2 mm
8:50am 15/01/2026
5:50pm 15/01/2026
1 in 1.1 years
91.6 %
12h
62.2 mm
8:50am 15/01/2026
8:50pm 15/01/2026
1 in 1.1 years
94.73 %
18h
62.2 mm
8:50am 15/01/2026
2:50am 16/01/2026
1 in 1.0 years
97.23 %
24h
62.2 mm
8:50am 15/01/2026
8:50am 16/01/2026
1 in 1.0 years
98.51 %
30h
62.2 mm
8:50am 15/01/2026
2:50pm 16/01/2026
1 in 1.0 years
99.08 %
36h
62.2 mm
7:10am 15/01/2026
7:10pm 16/01/2026
1 in 1.0 years
99.6 %
48h
62.2 mm
7:10pm 14/01/2026
7:10pm 16/01/2026
1 in 1.0 years
99.92 %
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.