| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1950 | 0.00 | z | 0.00 | z | 0.00 | z | 137.00 | 422.08 | e | 678.46 | d | 548.50 | l | 604.50 | i | 498.00 | 326.02 | a | 43.00 | 27.00 | 2131.56 | |||||
| 1951 | 0.00 | 1.00 | 13.50 | 175.86 | a | 479.35 | d | 487.50 | 908.00 | 802.00 | 409.66 | a | 213.00 | 28.50 | 8.86 | c | 3527.23 | |||||||||
| 1952 | 0.00 | a | 9.50 | 10.16 | b | 341.67 | c | 411.00 | f | 734.50 | 903.43 | c | 901.07 | a | 461.00 | h | 260.92 | a | 34.29 | b | 0.50 | 3196.02 | ||||
| 1953 | 31.00 | a | 3.50 | g | 59.93 | a | 120.00 | a | 360.78 | b | 658.89 | c | 999.46 | d | 925.02 | c | 667.20 | e | 369.50 | 74.42 | d | 13.36 | b | 4279.56 | ||
| 1954 | 9.19 | d | 70.50 | 7.00 | f | 127.78 | c | 479.95 | c | 574.14 | a | 977.03 | b | 569.50 | k | 252.50 | n | 155.00 | f | 110.77 | d | 13.84 | c | 2363.19 | ||
| 1955 | 0.00 | c | 0.00 | b | 2.00 | r | 57.50 | r | 310.55 | c | 610.00 | c | 860.52 | b | 940.33 | d | 399.23 | d | 269.70 | a | 22.50 | f | 0.00 | d | 3390.33 | |
| 1956 | 0.00 | g | 1.00 | 79.50 | h | 142.50 | b | 489.59 | b | 807.60 | e | 978.50 | 836.47 | b | 556.20 | e | 188.50 | g | 67.50 | f | 54.00 | l | 3811.85 | |||
| 1957 | 0.00 | 0.00 | b | 3.50 | v | 0.00 | z | 415.00 | f | 547.50 | f | 1025.21 | c | 621.00 | i | 422.00 | f | 86.00 | k | 18.10 | a | 9.50 | h | 1043.32 | ||
| 1958 | 3.10 | a | 0.00 | l | 7.00 | h | 68.50 | f | 335.50 | m | 523.50 | 754.91 | d | 980.12 | a | 430.00 | g | 252.77 | e | 19.50 | f | 9.96 | c | 2524.36 | ||
| 1959 | 4.00 | g | 0.00 | e | 23.50 | h | 190.18 | b | 247.40 | e | 672.00 | 867.50 | 510.50 | h | 301.00 | g | 148.00 | j | 4.50 | g | 18.50 | j | 1977.08 | |||
| 1960 | 3.50 | g | 0.00 | z | 112.00 | h | 144.00 | f | 289.50 | j | 413.00 | m | 1102.50 | 643.00 | g | 415.50 | g | 270.00 | j | 12.50 | i | 0.00 | f | 1102.50 | ||
| 1961 | 26.50 | m | 22.00 | k | 48.50 | p | 54.00 | i | 420.00 | g | 615.50 | i | 1019.50 | 826.50 | g | 0.00 | z | 0.00 | z | 2.50 | m | 0.52 | a | 1020.02 | ||
| 1962 | 0.00 | z | 0.00 | z | 31.50 | g | 325.00 | 475.50 | 744.50 | 874.00 | 901.07 | a | 528.00 | 325.50 | 107.50 | 30.50 | 4311.57 | |||||||||
| 1963 | 28.00 | 44.00 | 91.00 | 195.50 | 521.50 | 750.50 | 966.00 | 967.50 | 750.50 | 427.50 | 41.00 | 22.00 | 4805.00 | |||||||||||||
| 1964 | 15.50 | 14.00 | 30.50 | 164.00 | 497.50 | 706.00 | 1003.00 | 785.00 | 421.00 | 275.50 | 39.64 | b | 0.00 | 3951.64 | ||||||||||||
| 1965 | 0.00 | 20.50 | 0.00 | 125.50 | 360.00 | 621.00 | 899.00 | 848.50 | 265.50 | 396.50 | 39.00 | 29.50 | 3605.00 | |||||||||||||
| 1966 | 0.50 | 0.00 | 110.50 | 155.50 | 562.00 | 650.50 | 996.50 | 837.00 | 702.00 | 250.00 | 3.50 | 16.50 | 4284.50 | |||||||||||||
| 1967 | 2.00 | 24.00 | 27.00 | 49.00 | 411.00 | 611.00 | 965.50 | 949.00 | 647.50 | 278.50 | 43.00 | 13.50 | 4021.00 | |||||||||||||
| 1968 | 39.00 | 15.00 | 93.00 | 138.50 | 402.50 | 649.00 | 977.00 | 816.50 | 530.00 | 191.50 | 50.00 | 0.00 | 3902.00 | |||||||||||||
| 1969 | 0.00 | 0.00 | 24.00 | 320.00 | 536.00 | 653.00 | 927.00 | 1002.00 | 645.00 | 128.50 | 51.00 | 3.00 | 4289.50 | |||||||||||||
| 1970 | 2.00 | 1.00 | 11.50 | 87.00 | 478.50 | 829.00 | 1000.00 | 943.50 | 471.50 | 153.50 | 15.00 | 6.50 | 3999.00 | |||||||||||||
| 1971 | 0.50 | 13.00 | 25.00 | 160.50 | 496.00 | a | 679.00 | 931.00 | 1157.50 | 479.50 | 260.00 | 55.00 | 0.00 | a | 4257.00 | |||||||||||
| 1972 | 7.00 | 8.50 | 171.50 | 172.00 | 506.50 | 811.00 | 811.50 | 978.00 | 443.50 | 208.50 | 27.00 | 21.50 | 4166.50 | |||||||||||||
| 1973 | 26.50 | 12.00 | 31.00 | 101.50 | 507.00 | 700.50 | 957.00 | 967.00 | 537.50 | 280.00 | 25.00 | 16.00 | 4161.00 | |||||||||||||
| 1974 | 16.00 | 0.00 | 52.50 | 276.50 | 359.00 | 842.00 | 1067.84 | c | 725.50 | 467.00 | 296.00 | 52.00 | 7.50 | 4161.84 | ||||||||||||
| 1975 | 4.50 | 6.00 | 7.50 | 53.50 | 373.50 | 623.50 | 1016.00 | 787.50 | 513.50 | 204.00 | 126.00 | 14.00 | 3729.50 | |||||||||||||
| 1976 | 27.90 | a | 30.50 | 89.00 | 282.00 | 581.50 | 649.50 | 946.50 | 905.50 | 625.50 | 257.50 | 72.50 | 45.00 | 4512.90 | ||||||||||||
| 1977 | 0.00 | 33.50 | 65.50 | 339.00 | 531.00 | 859.50 | 937.75 | a | 672.00 | 523.45 | a | 244.00 | 30.00 | 2.00 | 4237.70 | |||||||||||
| 1978 | 0.00 | 0.00 | 83.00 | 234.00 | 452.08 | a | 743.57 | b | 897.00 | 802.50 | 609.00 | 256.78 | a | 83.79 | a | 0.00 | 4161.73 | |||||||||
| 1979 | 0.00 | 0.00 | 64.00 | 155.50 | 417.00 | 747.00 | 938.61 | d | 889.50 | 715.50 | 346.50 | 20.69 | a | 46.50 | 4340.80 | |||||||||||
| 1980 | 4.50 | 9.50 | 14.50 | 412.50 | 636.00 | 735.00 | 969.00 | 729.00 | 571.50 | 319.00 | 102.00 | 75.95 | a | 4578.45 | ||||||||||||
| 1981 | 6.50 | 67.50 | 63.50 | 283.00 | 509.00 | 628.50 | 951.00 | 1005.00 | 625.00 | 271.50 | 112.50 | 6.50 | 4529.50 | |||||||||||||
| 1982 | 0.00 | 27.50 | 28.50 | 148.50 | 359.82 | c | 717.50 | 877.00 | 875.50 | 537.00 | 222.00 | 3.50 | 0.00 | 3796.82 | ||||||||||||
| 1983 | 13.50 | 59.00 | 59.00 | 167.00 | 470.00 | 702.50 | 889.00 | 1083.50 | 503.00 | 297.00 | 66.50 | 0.00 | 4310.00 | |||||||||||||
| 1984 | 38.50 | 30.50 | 33.00 | 236.00 | 489.00 | 701.50 | 1009.00 | 1035.50 | 405.50 | 231.00 | 28.50 | 13.00 | 4251.00 | |||||||||||||
| 1985 | 0.00 | 8.50 | 51.00 | 301.50 | 632.00 | 737.50 | 1098.50 | 780.50 | 339.31 | a | 225.50 | 28.50 | 2.00 | 4204.81 | ||||||||||||
| 1986 | 36.00 | 37.00 | 168.00 | 210.50 | 486.00 | 836.50 | 797.50 | 879.50 | 338.00 | 263.50 | 28.50 | 1.50 | 4082.50 | |||||||||||||
| 1987 | 13.50 | 31.50 | 93.00 | 357.50 | 566.00 | 805.00 | 944.00 | 729.50 | 585.00 | 206.00 | 48.00 | 17.50 | 4396.50 | |||||||||||||
| 1988 | 21.00 | 41.50 | 74.00 | 273.50 | 647.50 | 997.00 | 1010.50 | 913.00 | 509.50 | 319.00 | 62.50 | 16.00 | 4885.00 | |||||||||||||
| 1989 | 29.00 | 0.00 | 29.50 | 175.00 | 447.50 | 738.00 | 1021.50 | 831.00 | 503.50 | 243.50 | 70.00 | 14.50 | 4103.00 | |||||||||||||
| 1990 | 13.50 | 18.00 | 49.00 | 215.50 | 398.50 | 660.00 | 915.00 | 924.50 | 692.00 | 196.00 | 78.00 | 27.00 | 4187.00 | |||||||||||||
| 1991 | 9.00 | 46.00 | 43.00 | 179.50 | 458.50 | 656.50 | 947.50 | 1033.00 | 576.00 | 260.00 | 21.00 | 6.50 | 4236.50 | |||||||||||||
| 1992 | 43.50 | 40.50 | 68.50 | 292.00 | 512.50 | 758.00 | 744.00 | 772.00 | 476.00 | 277.00 | 22.50 | 0.50 | 4007.00 | |||||||||||||
| 1993 | 3.50 | 0.50 | 88.50 | 188.50 | 570.00 | 630.50 | 659.50 | 730.00 | 432.50 | 240.50 | 14.00 | 9.00 | 3567.00 | |||||||||||||
| 1994 | 0.00 | 0.00 | 74.50 | 226.50 | 534.00 | 723.50 | 936.50 | 937.00 | 664.50 | 174.00 | 10.00 | 22.50 | 4303.00 | |||||||||||||
| 1995 | 11.50 | 59.00 | 64.00 | 111.50 | 448.50 | 661.50 | 844.00 | 844.50 | 544.50 | 204.50 | 43.00 | 4.50 | 3841.00 | |||||||||||||
| 1996 | 14.47 | a | 38.50 | 28.50 | 226.50 | 335.00 | 706.50 | 899.50 | 924.00 | 495.00 | 235.00 | 9.50 | 0.00 | 3912.47 | ||||||||||||
| 1997 | 19.50 | 10.00 | 68.50 | 150.00 | 470.00 | 728.50 | 904.50 | 908.50 | 668.00 | 254.00 | 45.00 | 12.50 | 4239.00 | |||||||||||||
| 1998 | 0.00 | 5.50 | 46.50 | 278.00 | 549.50 | 601.00 | 1056.00 | 1022.50 | 731.50 | 236.50 | 51.50 | 28.50 | 4607.00 | |||||||||||||
| 1999 | 13.00 | 34.00 | 95.00 | 154.50 | 428.00 | 680.00 | 843.50 | 977.50 | 486.00 | 279.00 | 125.50 | 26.00 | 4142.00 | |||||||||||||
| 2000 | 2.00 | 7.50 | 55.50 | 272.50 | 466.00 | 655.50 | 1039.00 | 949.50 | 552.00 | 200.50 | 12.00 | 6.20 | a | 4218.20 | ||||||||||||
| 2001 | 9.50 | 0.00 | 47.50 | 185.00 | 572.50 | 718.00 | 1002.50 | 1033.50 | 666.50 | 182.00 | 119.50 | 10.00 | 4546.50 | |||||||||||||
| 2002 | 26.00 | 14.50 | 4.00 | 130.50 | 393.50 | 685.50 | 1008.00 | 693.00 | 543.00 | 129.50 | 87.00 | 13.00 | 3727.50 | |||||||||||||
| 2003 | 23.00 | 0.00 | 88.50 | 307.00 | 393.00 | 704.00 | 1052.50 | 1055.00 | 525.50 | 389.00 | 24.00 | 19.50 | 4581.00 | |||||||||||||
| 2004 | 2.00 | 7.00 | 120.00 | 260.50 | 358.00 | 587.50 | 948.50 | 839.00 | 499.00 | 156.50 | 57.50 | 23.00 | 3858.50 | |||||||||||||
| 2005 | 57.50 | 22.00 | 60.50 | 214.50 | 419.00 | 676.50 | 973.00 | 818.50 | 546.00 | 271.50 | 91.50 | 15.00 | 4165.50 | |||||||||||||
| 2006 | 26.00 | 2.00 | 30.50 | 271.00 | 514.50 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 844.00 | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 12.73 | 18.07 | 57.59 | 207.65 | 467.72 | 699.03 | 942.70 | 892.88 | 539.21 | 255.11 | 51.05 | 13.82 | 4167.97 | |||||||||||||
| S.D. | 14.13 | 19.67 | 38.24 | 81.83 | 84.82 | 87.41 | 87.02 | 108.45 | 106.99 | 64.50 | 34.02 | 14.36 | 309.30 | |||||||||||||
| SKEW | 1.11 | 1.04 | 0.95 | 0.31 | -0.12 | 0.58 | -0.83 | 0.02 | -0.12 | 0.45 | 0.72 | 1.93 | 0.02 | |||||||||||||
| MAX | 57.50 | 70.50 | 171.50 | 412.50 | 647.50 | 997.00 | 1102.50 | 1157.50 | 750.50 | 427.50 | 126.00 | 75.95 | 4885.00 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 49.00 | 247.40 | 487.50 | 659.50 | 672.00 | 265.50 | 128.50 | 3.50 | 0.00 | 3527.23 | |||||||||||||
| NO YRS | 51 | 51 | 47 | 52 | 52 | 53 | 55 | 50 | 49 | 50 | 50 | 52 | 44 | |||||||||||||