| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1948 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 749.00 | 550.00 | 101.50 | 5.50 | 0.00 | 1406.00 | ||||||
| 1949 | 0.00 | 0.00 | 0.50 | 67.00 | 254.00 | 541.00 | 771.50 | 663.50 | 377.50 | 90.00 | 2.50 | 0.00 | 2767.50 | |||||||||||||
| 1950 | 0.00 | 0.00 | 4.50 | 64.00 | 181.00 | 562.50 | 617.00 | 591.07 | a | 322.50 | 198.50 | 1.50 | 0.00 | a | 2542.57 | |||||||||||
| 1951 | 0.00 | 11.41 | a | 8.50 | 54.50 | 287.50 | 378.50 | 717.00 | 689.50 | 353.50 | 104.50 | 0.00 | 0.00 | 2604.91 | ||||||||||||
| 1952 | 0.00 | 0.00 | 0.00 | 102.00 | 247.50 | 726.21 | a | 763.50 | 787.50 | 489.00 | 110.50 | 2.00 | 0.00 | 3228.21 | ||||||||||||
| 1953 | 0.00 | 0.00 | b | 5.00 | 60.50 | 233.00 | 669.00 | 830.00 | 712.00 | 491.50 | 189.50 | 14.00 | 0.00 | 3204.50 | ||||||||||||
| 1954 | 0.00 | 3.50 | 7.50 | 162.50 | 271.50 | 634.50 | 906.50 | 745.00 | 515.50 | 118.50 | 1.03 | a | 0.00 | 3366.03 | ||||||||||||
| 1955 | 0.00 | 0.00 | 1.00 | 125.50 | 322.00 | 457.50 | 892.50 | 814.50 | 480.00 | e | 165.50 | 1.50 | 1.00 | 3261.00 | ||||||||||||
| 1956 | 0.00 | 0.00 | 34.62 | a | 51.00 | 401.00 | 775.86 | a | 754.50 | 659.50 | 478.50 | 201.00 | 0.00 | 0.00 | 3355.98 | |||||||||||
| 1957 | 0.00 | 1.00 | 0.00 | 58.00 | 197.00 | 511.00 | 795.50 | 767.80 | c | 245.00 | h | 113.50 | 0.50 | 0.00 | 2444.30 | |||||||||||
| 1958 | 0.00 | 3.50 | 0.00 | 50.00 | 423.50 | 583.50 | 688.00 | 757.00 | 501.50 | 183.93 | a | 13.00 | 0.00 | 3203.93 | ||||||||||||
| 1959 | 0.00 | 0.00 | 1.50 | 109.00 | 280.50 | 711.50 | 760.00 | 814.50 | 407.00 | 78.02 | a | 0.00 | 0.00 | 3162.02 | ||||||||||||
| 1960 | 0.00 | z | 0.00 | 30.50 | 100.50 | 239.50 | 491.50 | 688.00 | 686.50 | 403.39 | b | 198.50 | 6.50 | 0.00 | c | 2844.89 | ||||||||||
| 1961 | 0.00 | 6.50 | 15.00 | 54.50 | 204.82 | c | 213.00 | v | 827.00 | 801.50 | 345.50 | 167.40 | a | 2.22 | c | 0.00 | 2424.44 | |||||||||
| 1962 | 0.00 | 31.50 | 18.27 | c | 169.00 | 463.00 | 557.00 | 757.50 | 791.50 | 453.50 | 222.50 | 7.00 | 0.00 | 3470.77 | ||||||||||||
| 1963 | 0.00 | a | 14.50 | 70.00 | 190.50 | 448.50 | 721.00 | 903.00 | 775.00 | 571.50 | 380.00 | 11.50 | 0.00 | 4085.50 | ||||||||||||
| 1964 | 1.50 | 0.00 | 3.50 | 108.50 | 390.00 | 570.00 | 909.00 | 684.50 | 504.50 | 205.63 | a | 47.50 | 21.91 | b | 3446.55 | |||||||||||
| 1965 | 1.00 | 2.00 | 3.50 | 199.66 | a | 398.50 | 552.00 | 785.50 | 677.00 | 274.00 | 243.87 | a | 30.50 | 0.00 | 3167.52 | |||||||||||
| 1966 | 0.00 | 0.00 | 58.00 | 81.50 | 386.50 | 556.00 | 880.00 | 641.00 | 394.66 | a | 116.00 | 0.00 | 0.00 | 3113.66 | ||||||||||||
| 1967 | 0.00 | 3.00 | 20.67 | a | 113.28 | a | 197.00 | k | 488.57 | b | 730.00 | 668.00 | 421.61 | b | 136.50 | i | 0.00 | z | 0.00 | n | 2445.12 | |||||
| 1968 | 0.00 | c | 0.00 | l | 26.50 | 51.50 | 167.00 | 661.00 | 731.94 | d | 668.50 | 421.00 | 202.50 | 0.00 | 2.00 | 2931.94 | ||||||||||
| 1969 | 0.00 | 0.00 | a | 6.00 | 143.00 | 373.00 | 441.00 | 803.50 | 786.50 | 533.50 | 51.50 | 1.50 | 0.00 | a | 3139.50 | |||||||||||
| 1970 | 1.50 | 3.50 | 0.00 | 56.00 | 399.90 | a | 583.50 | 801.50 | 846.50 | 412.00 | 97.00 | 8.00 | 0.00 | 3209.40 | ||||||||||||
| 1971 | 0.00 | a | 0.00 | 34.00 | 74.50 | 221.50 | 648.62 | a | 733.50 | 754.50 | 364.50 | 118.50 | 12.50 | 0.00 | 2962.12 | |||||||||||
| 1972 | 0.00 | 9.32 | a | 47.53 | a | 103.50 | 304.50 | 629.50 | 668.00 | 478.50 | h | 432.78 | c | 168.43 | a | 0.00 | 0.00 | z | 2363.57 | |||||||
| 1973 | 0.00 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | ||
| 1974 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1975 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1976 | 0.00 | z | 0.00 | z | 0.00 | z | 12.50 | p | 0.00 | z | 506.11 | c | 750.00 | 649.45 | a | 370.71 | b | 93.00 | b | 1.00 | 0.00 | a | 2370.28 | |||
| 1977 | 0.00 | 0.00 | 2.00 | l | 143.08 | d | 349.00 | 654.50 | 800.50 | 662.50 | 516.50 | 138.00 | 2.00 | 0.00 | 3266.08 | |||||||||||
| 1978 | 0.00 | 0.00 | 31.00 | 79.50 | 245.50 | 544.50 | 793.50 | 645.00 | 496.00 | 130.00 | 15.00 | 0.00 | 2980.00 | |||||||||||||
| 1979 | 0.00 | 0.00 | 4.50 | 108.50 | 233.00 | 515.69 | a | 717.00 | 650.50 | 503.00 | 197.50 | 0.00 | 0.00 | a | 2929.69 | |||||||||||
| 1980 | 0.00 | 0.00 | z | 0.00 | 90.00 | a | 265.00 | 642.00 | 821.50 | 705.77 | a | 491.00 | 128.13 | a | 29.50 | 9.00 | 3181.90 | |||||||||
| 1981 | 0.00 | 2.00 | 12.50 | 190.00 | 210.50 | 608.50 | 764.00 | 530.50 | g | 522.41 | a | 159.00 | 8.28 | a | 0.00 | b | 2477.19 | |||||||||
| 1982 | 3.50 | 6.00 | 9.00 | 63.00 | 269.50 | 445.00 | 741.00 | 742.00 | 425.00 | 100.00 | 0.00 | 0.00 | 2804.00 | |||||||||||||
| 1983 | 0.00 | 0.00 | 13.50 | 33.50 | 189.00 | 451.00 | 762.00 | 812.50 | 477.50 | 114.00 | 29.50 | 0.00 | 2882.50 | |||||||||||||
| 1984 | 0.00 | 0.00 | 0.00 | 12.00 | 332.00 | 538.00 | 756.50 | 741.00 | 374.50 | 109.50 | 2.50 | 0.00 | z | 2866.00 | ||||||||||||
| 1985 | 0.00 | 0.00 | 19.00 | 136.00 | 348.50 | 496.50 | 694.40 | a | 675.00 | 339.50 | 82.00 | 7.50 | 0.00 | 2798.40 | ||||||||||||
| 1986 | 0.00 | 10.50 | 69.00 | 104.50 | 236.00 | 606.50 | 737.50 | 669.50 | 394.50 | 100.50 | 2.50 | 0.00 | 2931.00 | |||||||||||||
| 1987 | 0.00 | 0.00 | 15.00 | 185.00 | 374.50 | 582.50 | 735.00 | 631.00 | 355.50 | 132.86 | c | 8.00 | 0.00 | 3019.36 | ||||||||||||
| 1988 | 0.00 | 0.00 | 22.50 | 76.50 | 331.00 | 657.50 | 708.50 | 701.00 | 351.00 | 128.00 | 16.50 | 0.00 | 2992.50 | |||||||||||||
| 1989 | 0.00 | 2.00 | 63.50 | 171.50 | 291.00 | 451.00 | 715.00 | 653.00 | 393.50 | 162.00 | 25.50 | 0.00 | 2928.00 | |||||||||||||
| 1990 | 4.00 | 0.00 | 6.50 | 102.00 | 243.00 | 658.50 | 668.00 | 669.50 | 499.00 | 165.50 | 28.00 | 0.00 | 3044.00 | |||||||||||||
| 1991 | 0.00 | 0.00 | 7.00 | 61.00 | 368.50 | 614.50 | 669.00 | 619.00 | 359.00 | 176.00 | 1.50 | 0.00 | 2875.50 | |||||||||||||
| 1992 | 0.00 | 1.50 | 4.00 | 129.50 | 304.50 | 474.50 | 634.50 | 554.00 | 453.50 | 148.00 | 0.00 | 0.00 | 2704.00 | |||||||||||||
| 1993 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 663.00 | 286.00 | 140.50 | 0.00 | 0.00 | 1089.50 | ||||||
| 1994 | 0.00 | 0.00 | 41.50 | 126.50 | 443.50 | 734.50 | 740.00 | 791.00 | 388.50 | g | 129.88 | b | 2.00 | 0.00 | 3008.88 | |||||||||||
| 1995 | 0.00 | 6.00 | 50.00 | 35.17 | a | 89.56 | d | 526.50 | 782.00 | 874.00 | 433.00 | 116.50 | 14.50 | 3.00 | 2930.23 | |||||||||||
| 1996 | 0.00 | 2.50 | f | 15.50 | d | 103.50 | 259.00 | 661.00 | 757.00 | 700.00 | 386.00 | 161.50 | 4.50 | 3.00 | 3051.00 | |||||||||||
| 1997 | 8.00 | 0.00 | 40.50 | 67.00 | 277.00 | 626.50 | 816.50 | 711.50 | 503.28 | a | 214.00 | 1.50 | 0.00 | 3265.78 | ||||||||||||
| 1998 | 0.00 | 0.00 | 27.50 | g | 46.00 | 408.00 | 523.50 | 853.50 | 758.50 | 660.00 | 102.50 | 27.93 | a | 1.07 | b | 3381.00 | ||||||||||
| 1999 | 0.00 | a | 1.04 | a | 30.50 | 76.55 | a | 299.00 | 570.00 | 870.00 | 785.33 | a | 375.00 | 159.00 | 86.00 | 1.50 | 3253.92 | |||||||||
| 2000 | 0.00 | 0.58 | d | 16.03 | b | 132.00 | 396.50 | 599.50 | 876.00 | 865.00 | 504.23 | d | 161.20 | a | 0.00 | 0.00 | 3551.05 | |||||||||
| 2001 | 0.00 | 0.00 | 5.00 | 130.34 | a | 307.93 | a | 643.00 | 901.00 | 793.50 | 456.00 | 151.26 | b | 38.50 | 0.00 | a | 3426.54 | |||||||||
| 2002 | 7.50 | 0.00 | 0.00 | 175.50 | 296.00 | 756.00 | 938.27 | a | 736.00 | 418.00 | 69.00 | 1.00 | 0.00 | 3397.27 | ||||||||||||
| 2003 | 0.00 | 5.50 | 56.50 | 151.00 | 311.00 | 519.00 | 914.50 | 817.00 | 375.50 | 262.50 | 9.60 | e | 0.00 | f | 3422.10 | |||||||||||
| 2004 | 0.00 | 2.50 | 80.00 | 124.50 | 434.50 | 506.50 | 714.00 | 628.78 | a | 494.00 | 150.00 | 11.50 | 0.00 | 3146.28 | ||||||||||||
| 2005 | 2.00 | 0.00 | 10.50 | 90.50 | 346.00 | 619.50 | 908.50 | 755.50 | 579.50 | 161.50 | 52.00 | 2.50 | 3528.00 | |||||||||||||
| 2006 | 3.00 | 13.00 | 23.50 | 166.11 | c | 409.50 | 718.97 | a | 570.00 | k | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 1334.08 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.60 | 2.81 | 20.45 | 103.02 | 306.98 | 583.06 | 778.37 | 720.60 | 439.46 | 149.45 | 11.02 | 0.88 | 3123.15 | |||||||||||||
| S.D. | 1.69 | 5.57 | 21.62 | 46.95 | 83.96 | 91.07 | 79.22 | 72.61 | 78.55 | 55.64 | 16.37 | 3.33 | 300.26 | |||||||||||||
| SKEW | 3.26 | 3.24 | 1.14 | 0.32 | -0.10 | 0.08 | 0.27 | 0.10 | 0.22 | 1.39 | 2.45 | 5.38 | 0.62 | |||||||||||||
| MAX | 8.00 | 31.50 | 80.00 | 199.66 | 463.00 | 775.86 | 938.27 | 874.00 | 660.00 | 380.00 | 86.00 | 21.91 | 4085.50 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 12.00 | 89.56 | 378.50 | 617.00 | 554.00 | 274.00 | 51.50 | 0.00 | 0.00 | 2542.57 | |||||||||||||
| NO YRS | 53 | 50 | 51 | 53 | 52 | 53 | 53 | 53 | 53 | 54 | 54 | 51 | 38 | |||||||||||||