Aparima River at Dunrobin
Catchment Area
215 sq km
Mean Flow
7.737 cumecs
Median Flow
5.315 cumecs
Highest Recorded Flow
610 cumecs
Level Above Normal
4.92 metres
Mean Annual Flood
146 cumecs
Lowest Recorded Flow
estimate 0.71 cumecs
7 Day Mean Annual Low Flow
1.648 cumecs
Average Rainfall in Millimetres (mm)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Annual
No Data
No Data
No Data
No Data
No Data
No Data
No Data
No Data
No Data
No Data
No Data
No Data
No Data
Flood Statistics
Highest Recorded Flood
Flow (cumecs)
Level Above Normal (metres)
Date
610
4.92
27/01/1984
Second Highest Recorded Flood
Flow (cumecs)
Level Above Normal (metres)
Date
226
2.47
7/02/1998
Third Highest Recorded Flood
Flow (cumecs)
Level Above Normal (metres)
Date
195
2.23
19/11/2001
Drought Statistics
Lowest Recorded Flow in Cumecs
Flow
Date
estimate 0.71
23/02/1971
Second Lowest Recorded Flow in Cumecs
Flow
Date
0.851
27/02/1999
Third Lowest Recorded Flow in Cumecs
Flow
Date
0.898
26/03/2001
Drought Return Periods in Cumecs
7-Day Mean Annual Low
5 Years
10 Years
20 Years
50 Years
100 Years
Lowest Recorded Flow
1.648
1.04
0.93
0.825
0.68
0.57
estimate 0.71 on 23/02/1971