Source is
M:\Datanegeri\Perak\Wlevel.mtd
Monthly
means 1967 to 2000 site
3814416 SG. SLIM at SLIM RIVER, PERAK
Flow m3/s
Year Jan
Feb Mar Apr
May Jun Jul
Aug Sep Oct
Nov Dec Mean
1967 34.66
19.79 12.13 11.91
16.46 8.14 7.26
5.92 8.25 14.11
37.65 20.45 16.36
1968 8.82
7.26 ? ?
23.07 17.47 15.96
13.40 16.97 22.18
18.45 ? 16.00?
1969 ?
11.62 9.96 10.23
22.66 13.13 9.21
12.41 15.69 39.03
27.07 23.65 17.76?
1970 21.63
12.72 12.06 15.54
17.96 12.40 9.58
9.57 18.65 23.61
18.49 24.28 16.41
1971 46.35
14.67 12.94 ?
? 10.05 8.78
13.19 14.48 11.88
24.47 50.82 20.87?
1972 18.71
12.47 10.82 16.53
20.68 16.17 9.59
9.93 15.51 23.89
31.39 18.82 17.04
1973 12.42
9.67 9.44 17.81
19.76 21.15 12.59
16.49 20.21 30.53
42.89 ? 19.37?
1974 ?
13.04 10.01 18.24
18.28 12.27 11.22
9.55 17.91 11.91
18.01 14.24 14.04?
1975 18.34
11.40 13.50 17.05
? 11.16 ?
? ? ?
? ? 14.35?
1976 ?
? ? ?
? ? ?
? ? ?
? ? ?
1977 ?
? 9.27 ?
14.94 17.39 18.58
10.79 9.20 39.03
23.33 15.22 17.54?
1978 10.33
8.69 6.08 11.34
15.62 7.02 6.08 5.63 6.02 11.47
21.86 11.42 10.13
1979 6.38
? ? 11.21
10.88 12.28 13.90
7.61 14.72 12.31
34.52 ? 13.69?
1980 ?
6.83 8.95 8.69
13.52 9.15 8.09
? ? 25.61
19.18 29.80 14.50?
1981 13.82
12.72 8.05 18.22
21.28 12.60 9.90
7.50 16.18 14.59
21.59 15.70 14.33
1982 9.17
8.74 9.52 20.99
23.50 16.90 12.25
? ? ?
? 16.69 14.76?
1983 9.67
6.71 6.69 5.15
8.33 ? 7.30
12.18 21.56 ?
? 10.79 9.83?
1984 13.55
? 21.46 20.59
19.42 16.49 14.65
10.60 11.74 20.22
27.73 34.85 19.21?
1985 17.26
17.33 ? 15.28
20.68 11.09 11.04
9.56 11.04 26.05
? ? 15.49?
1986 ?
? 13.29 19.80
15.93 ? ?
10.61 13.82 ?
? ? 14.67?
1987 ?
? 9.07 11.01
13.81 13.44 12.63
21.76 22.89 ?
? 22.81 15.93?
1988 13.86
16.87 13.26 15.02
15.57 ? 20.64
20.83 52.46 31.50 ? ? 22.18?
1989 18.60
13.07 18.06 25.61
21.85 20.50 18.62
13.99 ? ?
36.33 19.21 20.59?
1990 15.06
11.66 12.12 ?
? 12.68 18.28
13.93 ? ?
? 18.85 14.71?
1991 ?
? ? ? 16.59 ? ?
? ? ?
? 14.38 15.48?
1992 ?
? 9.95 ?
? ? ?
? 6.29 14.46
24.50 ? 13.77?
1993 ?
9.78 11.02 ?
? 11.37 12.66
10.63 19.59 23.35
31.12 24.86 17.19?
1994 ?
? 18.95 ?
? ? 14.90
18.92 36.17 29.56
30.59 ? 24.76?
1995 ?
? ? ?
? 24.66 ?
? 25.31 33.49
? ? 27.88?
1996 ?
17.74 15.68 32.73
28.95 ? ? 21.37 23.13
35.26 26.26 49.37
27.91?
1997 25.32
24.64 26.98 30.15
23.07 26.33 22.08
? ? ?
? 23.22 25.21?
1998 17.32
13.32 11.22 7.92
8.41 10.59 13.25
? 18.92 16.84
? 21.48 13.95?
1999 25.03
23.52 27.81 35.64
? 25.40 20.20
19.93 24.46 46.47
34.73 53.62 30.69?
2000 36.04
31.29 37.19 36.10
31.78 ? 21.29
25.37 24.97 29.01
35.87 ? 30.88?
Min. 6.38
6.71 6.08 5.15
8.33 7.02 6.08
5.63 6.02 11.47
18.01 10.79 10.13
Mean 18.68
13.98 13.77 18.03
18.52 14.79 13.35
13.27 18.70 24.43
27.91 24.30 14.85
Max. 46.35
31.29 37.19 36.10
31.78 26.33 22.08
25.37 52.46 46.47
42.89 53.62 17.04
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.