Jabatan Pengairan dan Saliran Malaysia

Source is \\Svr-jpshis\datanegeri\Perak\Rfmanual.mtd

Monthly totals 1974 to 2001 site 5005002 RUMAH JPS. at ALOR PONGSU, PERAK

Days end at 8:00:00am

Rain mm

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

1974 ? ? ? ? 190.0 105.0 77.0 160.0 182.5 139.0 136.5 150.5 1140.5?

1975 150.5 222.0 178.5 306.0 173.0 184.5 284.5 38.5 274.0 183.5 396.5 181.5 2573.0

1976 27.0 54.0 240.0 130.5 89.0 87.5 143.5 146.5 164.0 427.0 287.5 112.5 1909.0

1977 72.0 96.5 77.5 73.0 268.5 84.0 35.5 121.5 253.5 425.0 283.5 295.5 2086.0

1978 166.5 107.0 98.5 217.5 205.0 149.0 109.0 141.0 147.5 430.0 190.5 166.4 2127.9

1979 68.6 109.5 56.5 247.0 168.0 121.0 113.5 183.5 321.0 432.0 358.5 52.5 2231.6

1980 124.0 142.0 167.5 227.0 249.2 123.2 87.0 314.0 266.0 376.5 371.5 252.5 2700.5

1981 164.5 233.0 144.5 377.0 303.0 85.5 90.0 121.5 320.0 133.5 198.5 92.5 2263.5

1982 133.0 53.0 187.0 246.0 217.5 37.0 58.5 128.5 172.5 399.5 543.0 200.0 2375.5

1983 137.5 52.5 76.5 69.2 248.2 123.0 238.5 122.0 431.5 115.5 195.2 159.2 1969.0

1984 366.0 307.0 341.0 376.2 91.5 89.8 305.0 52.5 175.0 161.5 249.0 483.5 2998.0

1985 112.0 168.2 297.2 179.5 83.0 6.0 92.0 76.0 230.5 271.0 390.0 142.5 2048.0

1986 31.5 36.0 373.5 281.5 276.0 40.5 45.0 186.5 232.0 258.0 148.0 126.5 2035.0

1987 56.0 17.9 208.6 237.0 162.5 172.0 147.5 295.5 307.5 421.5 189.5 338.5 2554.0

1988 148.5 299.5 363.5 252.0 118.5 229.5 97.5 359.0 197.0 85.0 282.0 82.5 2514.5

1989 264.2 42.5 322.5 307.2 54.0 81.7 138.5 44.7 354.5 233.5 231.5 ? 2074.8?

1990 149.0 183.5 96.0 188.0 319.0 87.0 117.5 83.5 365.0 461.0 378.0 207.0 2634.5

1991 332.5 99.0 209.5 347.0 375.4 285.0 209.5 94.0 130.5 221.5 343.8 151.4 2799.1

1992 120.0 124.0 117.0 176.1 140.6 31.6 82.0 259.6 289.7 206.5 222.0 141.0 1910.1

1993 182.5 138.5 438.5 149.5 151.7 215.2 187.5 49.6 229.1 321.5 470.0 252.7 2786.3

1994 221.5 316.6 479.0 209.0 280.3 56.5 17.5 202.0 258.0 315.0 384.6 193.0 2933.0

1995 150.1 99.0 227.0 302.0 254.0 143.5 58.5 235.5 250.5 205.1 223.6 217.4 2366.2

1996 175.6 ? 165.5 342.5 151.5 207.5 231.0 329.5 99.5 319.5 192.3 142.9 2357.3?

1997 112.0 187.5 86.0 142.0 84.0 89.0 203.5 198.0 156.5 481.0 270.0 259.5 2269.0

1998 233.0 88.5 85.0 121.5 177.5 121.5 210.5 452.5 364.5 396.5 336.0 249.0 2836.0

1999 307.5 218.5 418.0 126.5 89.0 113.0 143.0 352.5 298.0 518.0 500.5 174.0 3258.5

2000 314.5 324.5 178.0 215.0 124.0 208.5 108.5 102.5 258.5 284.5 346.5 287.5 2752.5

2001 244.5 136.5 131.0 327.0 128.5 89.0 82.5 140.0 139.5 522.0 214.5 101.0 2256.0

Min. 27.0 17.9 56.5 69.2 54.0 6.0 17.5 38.5 99.5 85.0 136.5 52.5 1909.0

Mean 169.1 148.3 213.5 228.6 184.7 120.2 132.6 178.2 245.3 312.3 297.6 193.1 2447.5

Max. 366.0 324.5 479.0 377.0 375.4 285.0 305.0 452.5 431.5 522.0 543.0 483.5 3258.5

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.