Jabatan Pengairan dan Saliran Malaysia

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

Monthly means 1960 to 2000 site 4911445 PLUS at KG.LINTANG, PERAK

Flow m3/s

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

1960 ? ? ? ? ? ? ? 20.45 36.79 31.83 43.32 42.47 34.90?

1961 38.98 29.97 18.62 33.51 33.29 27.15 17.95 15.32 18.45 35.89 39.37 38.76 28.92

1962 36.52 19.25 28.74 26.28 43.09 19.05 16.62 21.61 24.42 46.08 36.39 35.56 29.58

1963 23.67 16.09 10.88 12.41 14.44 12.36 14.14 12.37 17.86 38.07 63.41 35.39 22.60

1964 20.15 16.14 11.69 14.98 27.86 23.56 32.18 19.01 24.93 20.12 30.04 24.47 22.11

1965 12.31 9.95 10.03 16.62 22.25 ? ? ? ? ? ? ? 14.30?

1966 ? ? ? ? ? ? ? ? ? ? ? ? ?

1967 ? ? ? ? ? ? ? ? ? ? ? ? ?

1968 ? ? ? ? ? ? ? ? ? ? ? ? ?

1969 ? ? ? ? ? ? ? ? ? ? ? ? ?

1970 ? ? ? ? ? ? ? ? ? ? ? ? ?

1971 ? ? ? ? ? ? ? ? ? ? ? ? ?

1972 ? ? ? ? ? ? ? ? ? ? ? ? ?

1973 ? ? ? ? ? ? ? ? ? ? ? ? ?

1974 ? 26.72 21.39 23.97 ? 28.18 24.36 24.56 46.92 34.98 37.45 26.49 29.47?

1975 36.26 21.08 ? ? ? ? ? 18.39 27.18 20.32 34.27 56.07 30.64?

1976 30.21 16.86 ? ? ? 22.21 17.56 15.28 14.82 36.82 40.49 26.23 24.54?

1977 19.73 14.42 11.23 11.64 12.49 13.43 11.84 11.52 10.39 59.65 ? ? 17.72?

1978 22.81 14.85 13.03 18.05 24.27 13.99 13.58 10.72 13.97 20.83 32.68 20.75 18.31

1979 12.98 12.08 10.46 14.00 16.18 20.89 ? 12.32 26.95 18.88 55.24 ? 19.95?

1980 15.79 13.77 20.63 20.12 ? ? ? ? 24.33 60.94 67.35 63.78 36.00?

1981 44.84 34.61 20.06 39.00 57.65 42.02 ? ? 50.62 36.07 40.44 28.34 39.36?

1982 17.61 18.47 15.45 ? 59.37 38.72 28.49 22.47 36.84 42.66 53.05 ? 33.37?

1983 28.21 ? 18.42 11.60 36.41 37.07 24.55 29.68 44.10 47.92 33.24 36.20 31.58?

1984 32.20 58.47 51.38 52.12 58.59 52.74 50.13 42.02 ? ? 55.44 60.96 51.34?

1985 25.04 25.10 31.38 24.21 40.53 21.97 ? ? ? 42.99 100.33 58.62 41.22?

1986 26.75 22.37 20.83 26.77 ? ? 19.49 16.88 20.49 31.12 30.22 26.45 24.14?

1987 20.13 17.18 17.33 19.00 ? ? 19.49 27.09 29.97 ? ? 44.84 24.47?

1988 35.70 31.44 25.01 24.28 26.64 22.82 25.32 33.21 ? 21.04 24.83 47.95 28.96?

1989 40.30 35.79 ? ? 37.59 34.54 ? ? 36.63 38.22 33.33 23.00 34.92?

1990 21.71 18.48 ? 16.84 27.25 18.43 ? 15.72 ? ? 37.07 25.84 22.70?

1991 ? 15.46 11.85 18.07 36.21 39.09 19.91 20.11 23.18 29.33 28.53 22.12 24.03?

1992 19.12 17.62 ? ? 24.59 ? ? 22.49 21.63 32.55 38.45 26.76 25.43?

1993 ? 21.83 ? ? ? 27.39 ? ? 34.63 ? ? ? 28.09?

1994 ? 30.17 ? ? ? ? ? ? ? 37.45 37.66 40.84 36.68?

1995 27.71 22.67 23.60 24.34 ? ? ? 45.58 31.34 50.15 63.21 48.99 37.65?

1996 32.60 30.99 24.43 40.92 ? ? 45.64 26.66 29.92 49.28 61.23 72.97 41.51?

1997 30.68 31.56 25.69 32.77 29.16 ? ? ? ? ? 61.50 36.87 35.41?

1998 25.27 18.85 16.05 13.93 17.63 15.90 24.43 ? ? 24.62 ? ? 19.63?

1999 ? ? 37.15 53.67 47.96 27.43 25.29 24.25 36.06 92.07 58.94 84.02 48.75?

2000 54.71 35.33 44.53 73.73 56.83 44.11 31.45 37.27 38.04 43.96 57.12 ? 47.00?

Min. 12.31 9.95 10.03 11.60 12.49 12.36 11.84 10.72 10.39 18.88 24.83 20.75 18.31

Mean 27.85 23.25 21.59 26.51 34.10 27.41 24.34 22.71 28.82 38.66 46.24 40.57 24.31

Max. 54.71 58.47 51.38 73.73 59.37 52.74 50.13 45.58 50.62 92.07 100.33 84.02 29.58

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.