Jabatan Pengairan dan Saliran Malaysia

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

Monthly means 1960 to 2000 site 5206432 SG. KRIAN at SELAMA, PERAK

Flow m3/s

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

1960 ? ? ? ? ? ? ? ? ? 22.74 ? ? 22.74?

1961 ? 22.21 25.23 ? ? ? ? ? ? 71.70 76.17 53.67 50.17?

1962 58.61 21.53 38.08 37.42 80.44 29.45 28.14 28.28 31.10 95.40 64.58 39.23 46.28

1963 35.24 15.90 24.61 16.51 41.31 18.01 24.54 26.00 31.25 80.00 116.47 61.20 41.07

1964 30.52 14.91 12.47 23.18 37.37 24.05 67.79 ? ? ? ? 35.86 30.96?

1965 14.02 14.56 21.85 46.81 38.18 15.28 28.63 36.29 54.33 85.61 106.20 67.34 44.21

1966 36.76 30.41 35.42 54.23 50.04 45.68 47.80 39.59 63.77 100.70 77.69 73.38 54.76

1967 65.39 30.07 21.00 36.22 74.55 33.28 32.99 33.16 53.46 65.24 96.13 57.19 50.00

1968 22.60 16.82 13.58 26.34 35.57 40.21 24.49 37.99 28.54 68.96 50.34 40.03 33.85

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

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

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

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

1973 ? ? ? ? ? 43.65 22.30 42.22 32.66 58.62 74.45 68.59 48.91?

1974 28.44 22.29 20.24 ? 41.08 ? 23.22 21.12 31.67 33.76 50.42 25.44 29.77?

1975 27.96 30.71 33.46 36.31 39.16 42.02 40.47 21.52 37.74 25.07 ? ? 33.42?

1976 ? ? ? ? 31.60 32.61 17.40 17.17 48.55 63.35 68.55 43.89 40.27?

1977 26.79 13.15 9.02 10.13 29.92 21.81 14.44 16.82 25.01 88.54 62.99 39.04 29.94

1978 17.09 16.18 20.33 32.84 45.52 22.18 16.93 14.35 29.52 49.81 42.86 16.96 27.08

1979 ? ? ? ? ? 30.64 19.12 14.46 32.78 23.77 55.89 32.01 29.67?

1980 13.75 6.06 13.50 ? ? ? ? ? ? 52.77 43.56 ? 26.07?

1981 27.28 24.36 14.59 33.99 52.89 ? 16.61 11.95 36.71 ? 23.17 7.67 24.87?

1982 5.67 4.10 ? ? ? 12.58 9.09 8.19 22.32 43.35 47.75 ? 19.21?

1983 9.50 5.15 6.36 3.23 19.09 16.18 6.57 14.43 56.56 31.73 22.22 10.14 16.77

1984 12.22 11.52 13.48 ? ? ? 16.84 10.25 9.59 ? 22.60 15.13 13.96?

1985 17.75 30.64 36.01 22.41 30.45 16.88 ? 14.44 21.40 42.50 55.17 33.75 29.21?

1986 13.60 8.64 17.38 27.99 26.43 23.40 10.92 12.01 34.57 75.34 65.34 31.23 28.97

1987 11.42 5.97 12.88 10.97 25.45 ? ? 33.38 40.30 ? ? 44.32 23.28?

1988 23.68 21.70 20.86 35.32 36.15 22.68 28.54 37.22 58.37 41.91 35.29 ? 32.89?

1989 ? ? ? ? ? ? ? ? ? ? ? ? ?

1990 13.74 11.92 10.44 17.00 37.66 17.30 21.29 16.92 ? 68.83 62.54 24.26 27.54?

1991 15.18 13.09 21.17 25.66 62.90 41.80 21.84 17.00 27.23 53.63 42.96 19.05 30.22

1992 ? ? ? ? ? 25.35 17.90 30.44 25.27 ? ? ? 24.73?

1993 ? 12.80 18.33 26.54 32.72 32.73 38.47 26.14 ? 61.51 58.13 45.40 35.46?

1994 19.76 30.36 28.22 ? 37.12 22.78 15.07 18.60 22.21 50.65 39.70 31.91 28.75?

1995 13.56 ? 11.64 ? ? ? 15.42 42.81 38.59 38.83 61.32 30.11 31.38?

1996 19.05 14.98 ? 45.86 39.74 36.71 43.20 38.83 32.33 ? 44.62 57.47 37.39?

1997 ? 25.27 15.35 ? 31.70 25.46 ? 15.67 29.14 57.34 62.00 19.77 31.28?

1998 15.22 12.11 9.14 13.51 14.80 16.53 21.38 28.70 36.45 55.53 99.07 42.67 30.46

1999 33.07 34.83 ? 50.56 ? 20.50 25.23 28.68 52.42 93.36 59.26 45.33 44.40?

2000 33.42 22.07 32.77 44.53 32.97 19.19 16.64 21.65 39.72 40.97 ? ? 30.41?

Min. 5.67 4.10 6.36 3.23 14.80 12.58 6.57 8.19 9.59 22.74 22.22 7.67 16.77

Mean 23.62 18.14 19.91 29.46 39.42 26.75 24.44 24.26 36.12 58.05 59.58 38.35 36.14

Max. 65.39 34.83 38.08 54.23 80.44 45.68 67.79 42.81 63.77 100.70 116.47 73.38 54.76

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.