Jabatan Pengairan dan Saliran Malaysia

Source is M:\Datanegeri\Perak\Wlevel.mtd

Monthly means 1987 to 2000 site 5610401 SG. RUI at JAM.JALAN RAYA, PERAK

Flow m3/s

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Mean

1987 ? ? 3.05 2.86 3.78 3.89 3.17 ? ? ? ? 7.39 4.03?

1988 6.12 4.70 ? 6.48 7.72 6.59 ? ? 14.19 ? 15.86 11.04 9.10?

1989 6.91 3.38 5.54 ? ? ? ? 4.81 9.09 15.94 10.24 ? 8.04?

1990 ? ? 3.34 ? ? ? 3.72 3.67 4.59 12.01 13.20 ? 6.73?

1991 ? ? ? 3.26 10.25 10.11 5.18 5.71 7.33 10.21 ? ? 7.44?

1992 4.94 3.78 2.98 3.25 ? ? 4.06 6.06 6.36 9.74 9.78 4.22 5.52?

1993 ? 2.02 ? ? ? ? 4.66 ? ? ? 5.88 15.51 7.15?

1994 ? 14.37 21.80 6.23 6.56 10.76 6.62 5.25 6.10 10.43 9.70 9.85 9.76?

1995 ? 6.80 9.32 7.54 8.24 4.61 5.25 8.71 11.27 9.07 12.25 7.71 8.26?

1996 5.91 4.77 4.53 7.10 7.34 6.14 9.41 9.03 7.84 12.43 12.71 16.31 8.65

1997 7.82 ? 5.76 7.06 7.90 6.18 5.85 6.28 7.93 9.83 12.01 7.83 7.67?

1998 5.92 5.18 3.88 3.28 ? 3.74 4.22 6.04 7.39 8.38 16.35 10.96 6.85?

1999 8.94 8.78 8.04 10.03 7.53 7.54 9.18 6.79 9.92 13.93 10.47 15.09 9.70

2000 14.43 12.83 13.84 16.23 14.98 14.98 11.73 12.53 14.33 18.61 17.34 ? 14.71?

Min. 4.94 2.02 2.98 2.86 3.78 3.74 3.17 3.67 4.59 8.38 5.88 4.22 8.65

Mean 7.62 6.66 7.46 6.66 8.26 7.45 6.09 6.81 8.86 11.87 12.15 10.59 9.17

Max. 14.43 14.37 21.80 16.23 14.98 14.98 11.73 12.53 14.33 18.61 17.34 16.31 9.70

Remarks:

1. The Min Mean and Max of Annual means are for complete years only.

2. ‘?’ means incomplete data for the month.

3. ‘xxxx?’ means total amount with incomplete data.