| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1906 | 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 | 20.00 | 20.00 | ||
| 1907 | 0.00 | 0.00 | 29.00 | 133.50 | 197.00 | 438.00 | 697.50 | 675.91 | c | 414.00 | 194.50 | 11.50 | 17.50 | 2808.41 | ||||||||||||
| 1908 | 0.00 | 0.00 | 4.00 | 98.50 | 156.00 | 403.97 | a | 714.00 | 667.00 | 423.50 | 119.00 | 0.00 | 0.00 | 2585.97 | ||||||||||||
| 1909 | 0.00 | 0.00 | 0.00 | 72.00 | 161.00 | 536.50 | 773.00 | 746.00 | 408.50 | 126.00 | 6.50 | 0.00 | 2829.50 | |||||||||||||
| 1910 | 0.00 | 0.00 | 41.00 | 129.50 | 314.00 | 544.50 | 754.50 | 696.50 | 531.50 | 188.50 | 18.50 | 0.00 | 3218.50 | |||||||||||||
| 1911 | 2.00 | 0.00 | 17.50 | 117.50 | 294.00 | 524.00 | 666.50 | 618.50 | 487.50 | 103.50 | 3.00 | h | 0.00 | 2831.00 | ||||||||||||
| 1912 | 0.00 | 0.00 | 0.50 | 27.50 | 263.50 | 500.69 | a | 685.50 | 640.00 | 502.00 | 124.00 | 3.62 | a | 0.00 | 2747.31 | |||||||||||
| 1913 | 0.00 | 0.00 | 0.00 | 64.50 | 267.50 | 514.50 | 683.50 | 719.00 | 372.93 | a | 62.00 | 15.50 | 0.00 | 2699.43 | ||||||||||||
| 1914 | 0.00 | 0.00 | 0.00 | 113.50 | 332.00 | 528.33 | c | 833.00 | 0.00 | z | 519.50 | 123.00 | 11.90 | a | 0.00 | 2461.23 | ||||||||||
| 1915 | 0.00 | 0.00 | 4.50 | 139.00 | 276.42 | a | 478.00 | 739.00 | 667.00 | 418.00 | 0.00 | z | 60.50 | 4.00 | 2786.42 | |||||||||||
| 1916 | 0.00 | a | 0.00 | 20.50 | 124.50 | 259.00 | 472.50 | 738.83 | a | 690.00 | 437.50 | 193.50 | 12.41 | a | 0.00 | f | 2948.75 | |||||||||
| 1917 | 0.00 | 0.00 | g | 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 | |||
| 1918 | 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 | |
| 1919 | 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 | |
| 1920 | 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 | |
| 1921 | 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 | |
| 1922 | 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 | |
| 1923 | 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 | |
| 1924 | 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 | |
| 1925 | 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 | |
| 1926 | 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 | |
| 1927 | 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 | |
| 1928 | 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 | |
| 1929 | 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 | |
| 1930 | 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 | |
| 1931 | 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 | |
| 1932 | 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 | |
| 1933 | 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 | |
| 1934 | 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 | |
| 1935 | 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 | |
| 1936 | 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 | |
| 1937 | 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 | |
| 1938 | 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 | |
| 1939 | 0.00 | z | 0.00 | z | 0.00 | z | 177.78 | c | 332.50 | 529.00 | 804.00 | 712.00 | 608.00 | 156.50 | 6.00 | 0.00 | 3325.78 | |||||||||
| 1940 | 0.00 | 0.00 | 56.00 | 179.50 | 0.00 | z | 585.00 | 839.50 | 756.00 | 552.50 | 283.50 | 6.50 | 0.00 | 3258.50 | ||||||||||||
| 1941 | 0.00 | 6.00 | 5.50 | 59.00 | 365.00 | 450.00 | 673.50 | 679.50 | 426.00 | 135.00 | 3.00 | 0.00 | 2802.50 | |||||||||||||
| 1942 | 0.00 | 0.00 | 0.00 | 134.00 | 251.00 | 479.00 | 753.50 | 734.18 | a | 444.50 | 171.00 | 2.59 | a | 0.00 | 2969.77 | |||||||||||
| 1943 | 0.00 | 4.00 | 9.00 | 208.50 | 329.00 | 529.00 | 791.00 | 790.50 | 482.00 | 207.50 | 16.55 | a | 0.00 | 3367.05 | ||||||||||||
| 1944 | 0.00 | 0.00 | 0.00 | 37.50 | 325.50 | 557.50 | 745.03 | a | 788.50 | 467.50 | 234.50 | 10.50 | 0.00 | 3166.53 | ||||||||||||
| 1945 | 0.00 | 2.00 | 3.50 | 65.17 | a | 321.50 | 525.00 | 819.00 | 757.00 | 502.00 | 0.00 | z | 24.00 | 0.00 | 3019.17 | |||||||||||
| 1946 | 0.00 | 0.00 | 10.00 | 215.00 | 256.00 | 627.50 | 920.50 | 730.50 | 507.50 | 0.00 | z | 0.00 | 2.50 | 3269.50 | ||||||||||||
| 1947 | 0.00 | a | 0.00 | 4.65 | a | 70.50 | 369.50 | 497.00 | 855.00 | 771.38 | a | 529.00 | 233.02 | a | 0.00 | 0.00 | 3330.05 | |||||||||
| 1948 | 0.00 | a | 0.00 | 0.00 | 111.21 | a | 299.50 | 540.00 | 723.50 | 678.38 | a | 483.89 | c | 94.00 | i | 0.00 | 0.00 | c | 2836.48 | |||||||
| 1949 | 0.00 | b | 0.00 | 0.00 | 98.40 | e | 134.50 | p | 416.50 | f | 750.00 | 628.00 | 489.60 | e | 63.50 | k | 0.00 | e | 0.00 | z | 1966.00 | |||||
| 1950 | 0.00 | d | 0.00 | 0.00 | d | 0.00 | z | 207.04 | c | 470.69 | a | 370.00 | m | 381.50 | i | 221.50 | j | 96.50 | o | 0.00 | n | 0.00 | q | 677.73 | ||
| 1951 | 0.00 | c | 0.00 | a | 0.00 | h | 35.00 | 140.50 | l | 300.00 | a | 382.50 | h | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | e | 335.00 | ||
| 1952 | 0.00 | a | 0.00 | d | 0.00 | f | 2.00 | p | 84.50 | s | 517.50 | f | 823.05 | a | 755.76 | b | 497.68 | b | 146.50 | f | 0.00 | f | 0.00 | 2076.49 | ||
| 1953 | 0.00 | a | 0.00 | a | 9.82 | a | 76.11 | c | 225.35 | e | 614.44 | c | 527.00 | k | 685.62 | a | 468.75 | b | 171.69 | e | 5.17 | a | 0.00 | 2256.95 | ||
| 1954 | 0.00 | d | 0.00 | a | 0.50 | 172.50 | 366.00 | 552.22 | c | 848.92 | e | 691.19 | d | 518.40 | e | 240.50 | f | 0.00 | h | 0.00 | b | 3149.73 | ||||
| 1955 | 0.00 | b | 0.00 | b | 0.00 | f | 70.00 | c | 262.97 | b | 516.72 | a | 712.48 | a | 628.50 | f | 491.00 | 225.61 | d | 4.00 | j | 3.50 | 2282.28 | |||
| 1956 | 0.00 | a | 0.00 | a | 12.50 | 60.00 | 320.33 | d | 582.86 | b | 662.50 | 533.20 | a | 148.50 | s | 191.00 | 0.50 | 0.00 | 2362.89 | |||||||
| 1957 | 2.00 | 4.50 | 5.00 | 50.50 | 210.11 | d | 565.38 | d | 770.50 | 730.29 | e | 423.50 | 218.00 | 13.00 | 0.00 | 2992.78 | ||||||||||
| 1958 | 0.00 | 3.65 | e | 1.00 | 78.50 | 411.00 | 565.56 | c | 707.50 | 795.15 | a | 521.50 | 226.00 | 12.50 | 0.00 | 3322.36 | ||||||||||
| 1959 | 0.00 | 0.00 | 0.50 | 108.00 | 289.50 | 626.00 | 761.57 | a | 743.00 | 406.03 | a | 136.00 | 4.50 | 0.00 | 3075.10 | |||||||||||
| 1960 | 0.00 | 0.00 | 15.50 | d | 114.50 | 236.00 | 530.00 | 709.79 | b | 694.92 | a | 535.00 | 172.57 | a | 13.45 | a | 0.00 | 3021.72 | ||||||||
| 1961 | 0.00 | 0.00 | 6.41 | b | 77.50 | 334.00 | 605.50 | 729.05 | c | 743.00 | 374.00 | 138.00 | 0.00 | 0.00 | 3007.47 | |||||||||||
| 1962 | 0.00 | a | 1.00 | 3.00 | 161.00 | 286.46 | d | 397.00 | i | 713.00 | 672.70 | a | 487.50 | 220.21 | b | 9.44 | c | 0.00 | a | 2554.31 | ||||||
| 1963 | 0.00 | 0.00 | a | 26.00 | 89.50 | 365.00 | 488.50 | 792.00 | 729.00 | 552.50 | 310.52 | a | 13.00 | 0.00 | 3366.02 | |||||||||||
| 1964 | 0.00 | a | 0.00 | c | 3.00 | 50.00 | 304.50 | 480.00 | 387.00 | q | 671.15 | a | 476.38 | a | 222.50 | 8.00 | 0.00 | 2215.53 | ||||||||
| 1965 | 0.00 | 0.00 | 0.53 | b | 103.00 | 236.12 | a | 438.50 | 756.50 | 637.00 | 346.50 | 215.50 | 16.50 | 0.00 | a | 2750.15 | ||||||||||
| 1966 | 0.00 | 0.00 | 31.50 | 96.21 | a | 364.77 | a | 519.50 | 816.00 | 709.50 | 468.50 | 182.00 | 4.50 | 0.00 | 3192.47 | |||||||||||
| 1967 | 0.00 | 0.00 | 53.50 | 74.50 | 281.50 | 459.50 | 769.00 | 638.00 | 471.00 | 180.50 | 21.00 | 0.00 | 2948.50 | |||||||||||||
| 1968 | 0.00 | 0.00 | 11.00 | 48.00 | 234.00 | 537.86 | b | 727.50 | 614.00 | 383.00 | 206.00 | 0.00 | 0.00 | 2761.36 | ||||||||||||
| 1969 | 0.00 | 0.00 | 2.50 | 117.93 | a | 341.00 | 454.50 | 793.50 | 775.00 | b | 468.50 | 92.00 | 5.50 | 0.00 | 3050.43 | |||||||||||
| 1970 | 0.00 | 0.00 | 0.00 | 26.25 | b | 286.50 | 465.52 | a | 749.50 | 756.00 | 351.50 | 85.00 | 0.00 | 0.00 | 2720.27 | |||||||||||
| 1971 | 0.00 | 0.00 | 41.50 | 56.00 | 208.00 | 517.50 | 720.50 | 698.50 | 371.38 | a | 126.50 | 3.50 | 0.00 | 2743.38 | ||||||||||||
| 1972 | 0.00 | 0.50 | 49.50 | 71.00 | 284.50 | 547.00 | 759.50 | 685.50 | 451.00 | 256.78 | a | 0.00 | 0.00 | 3105.28 | ||||||||||||
| 1973 | 0.00 | 0.00 | 0.00 | 45.00 | 264.61 | c | 493.50 | 679.50 | 0.00 | z | 355.00 | 152.50 | 23.50 | 0.00 | 2013.61 | |||||||||||
| 1974 | 0.00 | 0.00 | d | 19.00 | 0.00 | z | 336.50 | 574.50 | 699.00 | 601.50 | 420.00 | 220.00 | 0.00 | b | 0.00 | 2870.50 | ||||||||||
| 1975 | 0.00 | 0.00 | 1.00 | 38.00 | 219.00 | 424.00 | 704.00 | 618.50 | 403.00 | 162.50 | 14.50 | 0.00 | 2584.50 | |||||||||||||
| 1976 | 0.00 | 0.00 | 2.50 | 81.00 | 313.00 | 502.00 | 759.50 | 647.50 | 467.00 | 133.50 | 7.00 | 0.00 | 2913.00 | |||||||||||||
| 1977 | 0.00 | 0.00 | 3.50 | 160.00 | 280.00 | 622.00 | 763.50 | 727.00 | 485.50 | 0.00 | z | 20.50 | 0.00 | z | 3062.00 | |||||||||||
| 1978 | 0.00 | 0.00 | 34.50 | 0.00 | z | 239.50 | 524.00 | 743.50 | 629.00 | 458.00 | 231.00 | 0.00 | z | 0.00 | z | 2859.50 | ||||||||||
| 1979 | 0.00 | 0.00 | 0.00 | 102.00 | 284.50 | 485.00 | 709.00 | 665.50 | 498.00 | 250.00 | 0.00 | 0.00 | 2994.00 | |||||||||||||
| 1980 | 0.00 | 0.00 | 0.00 | a | 110.50 | 250.07 | a | 546.50 | 778.00 | 684.00 | 449.00 | 181.00 | 41.50 | 0.00 | 3040.57 | |||||||||||
| 1981 | 0.00 | 0.50 | 2.50 | 180.00 | 281.50 | 607.50 | 800.00 | 689.00 | 494.50 | 151.00 | 10.50 | 0.00 | 3217.00 | |||||||||||||
| 1982 | 0.00 | 0.00 | 5.50 | 76.00 | 272.00 | 478.50 | 732.50 | 789.50 | 492.50 | 89.50 | 0.50 | 0.00 | 2936.50 | |||||||||||||
| 1983 | 0.00 | 0.00 | 5.00 | 60.50 | 0.00 | z | 461.00 | 754.50 | 802.50 | 567.00 | 196.00 | 48.50 | 0.00 | b | 2895.00 | |||||||||||
| 1984 | 0.00 | 0.00 | 10.50 | 61.00 | 402.00 | 520.50 | 827.00 | 750.00 | 501.00 | 104.00 | 2.50 | 0.00 | 3178.50 | |||||||||||||
| 1985 | 0.00 | 0.00 | 4.50 | 152.50 | 335.50 | 578.00 | 797.50 | 705.00 | 377.50 | 174.50 | 13.50 | 0.00 | 3138.50 | |||||||||||||
| 1986 | 0.00 | 10.50 | 62.50 | 125.00 | 303.00 | 578.50 | 690.50 | 745.50 | 356.00 | 126.00 | 7.00 | 0.00 | 3004.50 | |||||||||||||
| 1987 | 0.00 | 0.00 | 0.00 | 140.00 | 298.50 | 584.50 | 692.50 | 684.00 | 402.50 | 275.50 | 38.50 | 0.00 | 3116.00 | |||||||||||||
| 1988 | 0.00 | 0.00 | 14.00 | 114.50 | 292.50 | 624.00 | 759.50 | 730.00 | 420.00 | 262.50 | 19.00 | 0.00 | 3236.00 | |||||||||||||
| 1989 | 0.00 | 0.00 | 35.50 | 179.50 | 320.50 | 518.50 | 803.00 | 659.00 | 474.50 | 175.00 | 7.00 | 0.00 | 3172.50 | |||||||||||||
| 1990 | 0.00 | a | 0.00 | 32.00 | 127.00 | 243.00 | 606.50 | 753.00 | 663.00 | 576.50 | 190.00 | 18.00 | 0.00 | 3209.00 | ||||||||||||
| 1991 | 0.00 | 0.00 | 3.50 | 64.50 | 282.50 | 518.50 | 754.00 | 747.50 | 455.00 | 243.00 | 4.00 | 0.00 | 3072.50 | |||||||||||||
| 1992 | 0.00 | 0.00 | 9.00 | 172.00 | 373.00 | 491.00 | 647.00 | 650.50 | 427.00 | 237.50 | 0.00 | 0.00 | 3007.00 | |||||||||||||
| 1993 | 0.00 | 0.00 | 18.00 | 74.50 | 343.00 | 483.00 | 680.00 | 628.00 | 405.50 | 0.00 | z | 0.00 | z | 0.00 | z | 2632.00 | ||||||||||
| 1994 | 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 | 7.50 | 0.00 | z | 7.50 | ||
| 1995 | 0.00 | 2.00 | 34.50 | 51.50 | 234.50 | 424.00 | 625.50 | 760.50 | 437.50 | 114.00 | 6.50 | 0.00 | 2690.50 | |||||||||||||
| 1996 | 0.00 | 0.00 | 3.00 | 98.00 | 378.00 | 578.50 | 775.50 | 710.50 | 391.00 | 180.00 | 0.00 | 0.00 | 3114.50 | |||||||||||||
| 1997 | 0.00 | 0.00 | 19.00 | 67.50 | 315.50 | 470.00 | 645.00 | 664.50 | 516.00 | 157.50 | 0.00 | 0.00 | 2855.00 | |||||||||||||
| 1998 | 0.00 | 0.00 | 28.50 | 50.50 | 332.50 | 491.00 | 852.00 | 796.50 | 616.03 | a | 177.00 | 3.00 | n | 0.00 | z | 3344.03 | ||||||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.06 | 0.51 | 12.53 | 99.13 | 290.93 | 519.44 | 749.34 | 700.83 | 462.37 | 179.57 | 10.33 | 0.75 | 3001.45 | |||||||||||||
| S.D. | 0.34 | 1.67 | 16.01 | 46.58 | 55.43 | 61.40 | 58.30 | 56.48 | 62.18 | 54.48 | 12.18 | 3.37 | 211.18 | |||||||||||||
| SKEW | 5.62 | 4.17 | 1.45 | 0.59 | -0.16 | -0.50 | 0.30 | -0.25 | 0.16 | 0.07 | 2.08 | 5.03 | -0.19 | |||||||||||||
| MAX | 2.00 | 10.50 | 62.50 | 215.00 | 411.00 | 627.50 | 920.50 | 802.50 | 616.03 | 310.52 | 60.50 | 20.00 | 3367.05 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 26.25 | 156.00 | 300.00 | 625.50 | 533.20 | 346.50 | 62.00 | 0.00 | 0.00 | 2584.50 | |||||||||||||
| NO YRS | 69 | 68 | 66 | 65 | 64 | 66 | 65 | 64 | 66 | 58 | 61 | 63 | 43 | |||||||||||||