Jabatan Pengairan dan Saliran Malaysia

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

Monthly means 1972 to 2000 site 4023412 SG. PAHANG at SG. YAP, PAHANG

Flow m3/s

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

1972 ? ? ? ? ? ? ? ? ? ? ? 1142.8 1142.8?

1973 389.6 164.9 98.3 167.9 296.5 291.5 150.0 132.0 242.0 345.4 509.0 1266.5 339.6

1974 271.8 299.6 211.0 393.7 399.3 255.7 ? 244.8 344.3 ? 577.1 369.1 336.3?

1975 658.1 408.0 341.2 340.2 459.8 ? 207.2 117.2 192.4 234.9 826.2 ? 377.5?

1976 240.3 79.8 73.7 107.2 151.9 153.5 133.6 ? ? 365.5 348.3 493.4 215.7?

1977 285.9 81.1 47.3 26.8 33.8 35.9 27.7 ? ? ? ? ? 77.3?

1978 209.7 58.5 40.2 66.3 ? ? ? 40.8 86.6 ? ? ? 84.2?

1979 115.0 52.2 21.4 77.8 115.1 90.8 79.3 26.0 189.5 253.4 1013.5 307.4 194.7

1980 92.7 88.9 83.7 62.7 111.0 91.3 ? 193.3 158.6 346.5 330.1 ? 156.3?

1981 167.1 ? ? ? ? 82.3 60.2 80.0 ? 139.7 ? 127.4 109.6?

1982 117.4 127.4 115.3 279.7 383.3 ? 200.9 199.5 229.8 377.9 543.2 704.0 299.1?

1983 287.6 128.9 83.2 64.7 135.6 134.2 83.3 151.2 363.0 285.8 342.2 1346.4 285.7

1984 590.0 1257.0 761.1 556.9 ? ? 318.8 ? ? ? 402.7 622.5 639.9?

1985 272.9 298.5 799.9 297.4 557.6 182.8 111.0 44.2 244.2 671.5 596.9 ? 371.8?

1986 ? ? 207.9 216.1 160.2 ? ? ? ? ? ? ? 194.5?

1987 ? ? ? 145.2 259.6 316.6 184.8 277.3 424.8 731.8 515.4 1175.3 449.3?

1988 281.7 286.9 296.8 ? ? ? ? ? 496.1 223.0 1283.2 713.9 510.2?

1989 411.3 124.3 99.2 162.7 307.2 371.8 239.5 170.3 248.1 391.3 381.8 263.7 265.1

1990 452.6 ? ? ? 243.4 130.7 ? ? ? 343.7 484.6 753.8 402.5?

1991 360.4 216.1 195.1 275.7 345.2 264.1 ? ? ? ? 399.4 1044.0 390.5?

1992 542.2 319.2 232.3 173.2 ? 165.5 ? ? ? ? 733.9 670.7 406.7?

1993 ? 232.1 328.2 370.1 ? 338.2 ? ? ? 818.2 1047.6 ? 526.2?

1994 ? 371.0 446.5 382.4 540.4 421.3 219.1 209.4 308.1 404.4 1232.9 651.8 471.1?

1995 488.9 ? 256.5 ? 323.9 ? 307.9 ? 386.8 471.5 ? ? 372.5?

1996 ? ? ? 450.7 467.8 424.7 326.8 267.4 387.5 ? ? 516.7 405.7?

1997 241.0 277.0 227.3 ? 214.6 ? 611.7 ? 829.7 703.7 452.5 561.1 458.3?

1998 ? ? ? ? ? 176.6 249.7 ? ? 235.9 487.8 920.4 415.2?

1999 ? ? ? 606.1 ? ? ? 242.2 404.3 ? 462.0 620.5 466.5?

2000 660.0 387.0 509.4 577.7 352.0 354.1 196.3 230.8 187.8 279.0 433.5 ? 378.7?

Min. 92.7 52.2 21.4 26.8 33.8 35.9 27.7 26.0 86.6 139.7 330.1 127.4 194.7

Mean 339.8 262.9 248.9 263.7 292.9 225.3 206.0 164.2 318.0 401.2 609.3 713.6 271.3

Max. 660.0 1257.0 799.9 606.1 557.6 424.7 611.7 277.3 829.7 818.2 1283.2 1346.4 339.6

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.