Trig Point Hill - - Last 2 days

Trig Point Hill - IFD

6:30am 13/07/2026 to 6:30am 15/07/2026

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

12.8 mm

12:30pm 14/07/2026

12:45pm 14/07/2026

1 in 6.9 years

14.43 %

30m

21.2 mm

12:15pm 14/07/2026

12:45pm 14/07/2026

1 in 16.3 years

6.14 %

45m

21.2 mm

12:15pm 14/07/2026

1:00pm 14/07/2026

1 in 9.2 years

10.85 %

60m

21.2 mm

12:15pm 14/07/2026

1:15pm 14/07/2026

1 in 6.5 years

15.28 %

90m

21.2 mm

12:15pm 14/07/2026

1:45pm 14/07/2026

1 in 4.0 years

24.79 %

120m

21.2 mm

12:15pm 14/07/2026

2:15pm 14/07/2026

1 in 2.9 years

34.26 %

21.4 mm

9:45am 14/07/2026

12:45pm 14/07/2026

1 in 2.1 years

48.39 %

21.4 mm

8:15am 14/07/2026

12:45pm 14/07/2026

1 in 1.5 years

65.16 %

22.2 mm

6:45am 14/07/2026

12:45pm 14/07/2026

1 in 1.4 years

73.1 %

25.4 mm

3:45am 14/07/2026

12:45pm 14/07/2026

1 in 1.3 years

75.43 %

12h

30.4 mm

12:45am 14/07/2026

12:45pm 14/07/2026

1 in 1.5 years

67.45 %

18h

32.2 mm

6:45pm 13/07/2026

12:45pm 14/07/2026

1 in 1.3 years

77.69 %

24h

32.4 mm

12:45pm 13/07/2026

12:45pm 14/07/2026

1 in 1.1 years

87.88 %

30h

32.6 mm

6:45am 13/07/2026

12:45pm 14/07/2026

1 in 1.1 years

92.0 %

36h

32.8 mm

6:30pm 13/07/2026

6:30am 15/07/2026

1 in 1.1 years

95.1 %

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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