| 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 | 1.50 | 62.00 | 396.50 | 925.50 | 1078.50 | 2464.00 | ||||||
| 1949 | 788.00 | m | 1023.50 | 801.50 | 457.50 | 327.00 | 88.50 | 0.50 | 1.50 | 38.00 | 479.50 | 547.50 | 1065.50 | 4830.50 | ||||||||||||
| 1950 | 1082.50 | 791.00 | 775.50 | 456.50 | 311.50 | 48.50 | 2.50 | 0.00 | 139.00 | 136.00 | 634.00 | 827.50 | 5204.50 | |||||||||||||
| 1951 | 1065.50 | 883.04 | a | 828.00 | 550.50 | 264.00 | 70.50 | 0.00 | 8.50 | 46.00 | 433.50 | 863.00 | 1161.00 | 6173.54 | ||||||||||||
| 1952 | 1120.50 | 996.00 | 989.00 | 488.50 | 224.00 | 44.50 | 3.50 | 0.00 | 63.00 | 196.00 | 880.86 | a | 1091.00 | 6096.86 | ||||||||||||
| 1953 | 913.00 | 889.00 | 808.50 | 597.00 | 401.00 | 34.00 | 4.50 | 4.50 | 4.50 | 364.50 | 668.50 | 1113.00 | 5802.00 | |||||||||||||
| 1954 | 964.50 | 706.50 | 906.50 | 336.00 | 170.50 | 59.00 | 1.50 | 3.00 | 63.50 | 317.50 | 611.50 | 1054.00 | 5194.00 | |||||||||||||
| 1955 | 1166.00 | 1107.00 | 838.00 | 600.00 | 319.50 | 91.00 | 3.00 | 1.00 | 48.00 | 277.00 | 796.50 | 956.50 | 6203.50 | |||||||||||||
| 1956 | 893.50 | 1042.50 | 760.50 | 539.50 | 174.50 | 6.50 | 5.00 | 19.50 | 13.00 | 338.00 | 904.00 | 1050.50 | 5747.00 | |||||||||||||
| 1957 | 1096.50 | 733.70 | a | 831.00 | 631.03 | a | 450.00 | 84.31 | a | 16.50 | 25.50 | 74.00 | 478.50 | 945.00 | 978.50 | 6344.55 | ||||||||||
| 1958 | 1053.50 | 793.00 | 971.50 | 613.00 | 162.50 | 10.50 | 1.00 | 3.00 | 89.00 | 347.50 | 743.50 | 816.00 | 5604.00 | |||||||||||||
| 1959 | 996.00 | 935.00 | 801.00 | 473.50 | 237.00 | 21.00 | 0.00 | 5.00 | 131.00 | 412.00 | 766.00 | 973.00 | 5750.50 | |||||||||||||
| 1960 | 1222.00 | 1117.50 | 745.50 | 480.00 | 297.08 | a | 29.00 | 0.00 | 4.50 | 40.00 | 483.00 | 704.50 | 1129.00 | 6252.08 | ||||||||||||
| 1961 | 1055.00 | 843.50 | 811.00 | 553.00 | 211.50 | 16.50 | 0.00 | 8.50 | 190.00 | 426.00 | 839.00 | 1175.50 | 6129.50 | |||||||||||||
| 1962 | 1161.50 | 868.00 | 945.50 | 398.00 | 278.50 | 59.00 | 0.00 | 0.00 | 92.00 | 337.00 | 635.50 | 956.00 | 5731.00 | |||||||||||||
| 1963 | 1313.00 | 798.50 | 797.50 | 552.00 | 99.50 | 32.50 | 0.00 | a | 6.50 | 17.00 | 218.00 | 693.00 | 1027.00 | 5554.50 | ||||||||||||
| 1964 | 1152.00 | 1070.50 | 970.50 | 635.50 | 260.50 | 47.50 | 0.00 | 14.50 | 112.00 | 256.50 | 848.50 | 1114.50 | 6482.50 | |||||||||||||
| 1965 | 1055.50 | 934.50 | 941.50 | 583.50 | 384.00 | 125.50 | 0.50 | 10.50 | 190.00 | 329.00 | 657.00 | 1006.00 | 6217.50 | |||||||||||||
| 1966 | 1167.00 | 1062.50 | 719.00 | 483.50 | 154.00 | 37.00 | 0.00 | 8.00 | 60.00 | 358.00 | 624.00 | 1104.50 | 5777.50 | |||||||||||||
| 1967 | 1112.00 | 825.00 | 617.00 | 537.50 | 293.00 | 92.00 | 0.00 | 10.50 | 74.00 | 306.50 | 636.50 | 1235.00 | 5739.00 | |||||||||||||
| 1968 | 1142.50 | 809.50 | 752.50 | 651.50 | 314.00 | 53.00 | 1.50 | 23.50 | 94.00 | 355.00 | 844.00 | 1151.50 | 6192.50 | |||||||||||||
| 1969 | 1003.50 | 937.50 | 964.00 | 464.00 | 162.00 | 88.00 | 0.00 | 0.00 | 33.50 | 597.50 | 799.50 | 951.00 | 6000.50 | |||||||||||||
| 1970 | 1065.50 | 722.50 | 910.00 | 706.50 | 213.50 | 122.00 | 0.00 | 0.00 | d | 175.50 | 570.00 | 764.50 | 1070.00 | 6320.00 | ||||||||||||
| 1971 | 1058.50 | 925.50 | 779.50 | 549.44 | c | 374.00 | 57.00 | 0.00 | d | 3.50 | 183.50 | 504.50 | 843.50 | 1190.00 | 6468.94 | |||||||||||
| 1972 | 1078.50 | 819.50 | 564.00 | 494.00 | 215.00 | 13.27 | d | 0.00 | 28.00 | 93.00 | 430.00 | 957.00 | 1167.00 | 5859.27 | ||||||||||||
| 1973 | 1220.50 | 936.00 | 952.50 | 700.50 | 287.50 | 100.00 | 6.00 | 9.00 | 134.00 | 358.00 | 743.28 | a | 1059.50 | 6506.78 | ||||||||||||
| 1974 | 1238.50 | 990.50 | 651.00 | 568.00 | 145.50 | 32.50 | 2.00 | 5.00 | 134.50 | 397.00 | 796.50 | 1156.50 | 6117.50 | |||||||||||||
| 1975 | 1176.00 | 974.50 | 912.00 | 692.50 | 382.50 | 82.00 | 0.50 | 6.00 | 113.00 | 376.50 | 809.00 | 1032.50 | 6557.00 | |||||||||||||
| 1976 | 1097.00 | 791.00 | 840.50 | 537.41 | a | 223.00 | 31.50 | 0.00 | 0.50 | 115.00 | 474.50 | 714.00 | 990.00 | 5814.41 | ||||||||||||
| 1977 | 1180.50 | 815.50 | 861.50 | 0.00 | z | 0.00 | z | 0.00 | z | 0.52 | a | 0.00 | 74.48 | a | 320.91 | d | 550.50 | g | 0.00 | z | 3253.41 | |||||
| 1978 | 1097.50 | 947.50 | 750.50 | 493.50 | 415.00 | 28.50 | g | 0.00 | b | 3.00 | 133.97 | a | 300.91 | b | 795.00 | a | 1245.50 | 6182.38 | ||||||||
| 1979 | 1370.00 | 1001.00 | 947.50 | 596.00 | 350.62 | b | 107.22 | c | 4.65 | a | 57.50 | 37.24 | a | 289.85 | a | 962.50 | 1009.64 | b | 6733.72 | |||||||
| 1980 | 1099.43 | b | 898.44 | c | 955.66 | b | 612.50 | 419.00 | 35.69 | a | 0.00 | 20.00 | 81.35 | d | 445.22 | b | 708.50 | 808.00 | 6083.79 | |||||||
| 1981 | 893.50 | 787.11 | a | 876.27 | a | 422.07 | a | 331.18 | a | 73.33 | c | 8.27 | a | 2.98 | e | 61.50 | 492.50 | 647.07 | a | 969.50 | 5565.28 | |||||
| 1982 | 1165.08 | a | 962.00 | 853.02 | a | 606.00 | 352.00 | 73.00 | 8.00 | 11.50 | 151.00 | 579.59 | c | 846.00 | 1082.00 | 6689.19 | ||||||||||
| 1983 | 1056.50 | 921.50 | 888.00 | 739.50 | 414.50 | 80.50 | h | 1.00 | 0.00 | 76.50 | 414.50 | 822.50 | 1116.00 | a | 6450.50 | |||||||||||
| 1984 | 1150.00 | 954.50 | 847.50 | 665.50 | 171.00 | 102.50 | 0.00 | 3.00 | 108.00 | 670.50 | 807.00 | 1037.00 | 6516.50 | |||||||||||||
| 1985 | 1124.00 | 1019.00 | 851.00 | 482.50 | 260.50 | 60.50 | 5.50 | 4.50 | 302.00 | 494.50 | 921.50 | 1045.50 | 6571.00 | |||||||||||||
| 1986 | 939.00 | 861.00 | 713.00 | 600.50 | 372.50 | 81.00 | 34.50 | 15.00 | 280.00 | 588.00 | 854.50 | 1060.00 | 6399.00 | |||||||||||||
| 1987 | 1180.00 | 926.50 | 982.00 | 513.50 | 365.50 | 45.50 | 10.50 | 46.00 | 166.50 | 394.00 | 868.00 | 1184.00 | 6682.00 | |||||||||||||
| 1988 | 1274.50 | 948.50 | 886.50 | 567.00 | 375.00 | 62.00 | 0.00 | 21.00 | 222.00 | 335.00 | 877.50 | 1157.00 | 6726.00 | |||||||||||||
| 1989 | 1257.50 | 952.00 | 696.00 | 426.50 | 239.00 | 91.00 | 3.00 | 42.00 | 119.00 | 496.50 | 766.50 | 1073.00 | 6162.00 | |||||||||||||
| 1990 | 1184.50 | 970.00 | 785.50 | 532.50 | 382.50 | 47.50 | 1.50 | 36.00 | 108.50 | 513.50 | 815.50 | 1350.00 | 6727.50 | |||||||||||||
| 1991 | 1268.50 | 863.00 | 947.00 | 664.50 | 387.50 | 148.00 | 4.00 | 3.50 | 156.00 | 448.50 | 937.00 | 1167.50 | 6995.00 | |||||||||||||
| 1992 | 1243.50 | 936.50 | 812.50 | 466.00 | 317.00 | 149.50 | 46.00 | 60.50 | 145.50 | 415.50 | 1007.50 | 1286.50 | 6886.50 | |||||||||||||
| 1993 | 1118.50 | 954.00 | 805.00 | 604.00 | 334.50 | 140.50 | 13.50 | 30.50 | 198.50 | 543.00 | 941.50 | 1132.00 | 6815.50 | |||||||||||||
| 1994 | 1058.50 | 1044.50 | 753.00 | 579.00 | 330.00 | 21.00 | 2.50 | 3.00 | 102.00 | 555.50 | 941.50 | 1008.50 | 6399.00 | |||||||||||||
| 1995 | 1147.00 | 731.50 | 793.50 | 681.50 | 487.00 | 154.00 | 36.00 | 0.00 | 168.50 | 474.50 | 705.00 | 998.50 | 6377.00 | |||||||||||||
| 1996 | 1127.50 | 830.50 | 809.50 | 572.00 | 174.50 | 23.50 | 0.00 | 2.50 | 245.00 | 542.50 | 804.50 | 1142.00 | 6274.00 | |||||||||||||
| 1997 | 1178.00 | 963.00 | 746.50 | 730.00 | 310.00 | 122.50 | 14.00 | 14.00 | 111.00 | 550.00 | 820.50 | 1125.00 | 6684.50 | |||||||||||||
| 1998 | 1045.50 | 985.00 | 856.50 | 718.00 | 348.50 | 154.50 | 2.00 | 5.00 | 66.00 | 522.50 | 808.00 | 1055.00 | 6566.50 | |||||||||||||
| 1999 | 984.50 | 814.50 | 678.38 | a | 697.00 | 432.00 | 138.00 | 9.00 | 25.50 | 194.00 | 432.00 | 627.00 | 1095.50 | 6127.38 | ||||||||||||
| 2000 | 1038.50 | 884.00 | 829.00 | 499.00 | 229.50 | 15.50 | 0.00 | 4.00 | 90.50 | 496.00 | 1026.00 | 1039.50 | 6151.50 | |||||||||||||
| 2001 | 1139.50 | 911.50 | 788.50 | 543.50 | 205.50 | 54.00 | 0.50 | 11.50 | 52.00 | 398.50 | 717.50 | 1162.00 | 5984.50 | |||||||||||||
| 2002 | 1135.50 | 947.00 | 868.00 | 416.50 | 256.50 | 15.00 | 0.00 | 9.00 | 135.00 | 513.00 | 796.50 | 1086.50 | 6178.50 | |||||||||||||
| 2003 | 864.00 | 922.00 | 829.50 | 580.00 | 252.50 | 29.00 | 0.00 | 4.00 | 127.50 | 302.50 | 868.00 | 1019.00 | 5798.00 | |||||||||||||
| 2004 | 1130.50 | 1045.50 | 600.50 | 564.00 | 260.50 | 44.00 | 6.50 | 19.00 | 195.50 | 545.00 | 855.50 | 1060.00 | 6326.50 | |||||||||||||
| 2005 | 989.00 | 874.00 | 835.00 | 566.50 | 289.50 | 112.50 | 0.00 | 6.00 | 97.50 | 441.00 | 723.00 | 1070.00 | 6004.00 | |||||||||||||
| 2006 | 1043.00 | 860.00 | 888.50 | 481.00 | 173.50 | 2.50 | g | 5.00 | l | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 3446.00 | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1107.96 | 911.34 | 826.20 | 560.53 | 290.76 | 68.10 | 4.56 | 11.59 | 114.29 | 421.88 | 797.65 | 1074.83 | 6193.68 | |||||||||||||
| S.D. | 105.40 | 97.35 | 97.82 | 91.06 | 89.96 | 42.24 | 9.11 | 14.12 | 64.73 | 109.10 | 110.18 | 103.05 | 413.57 | |||||||||||||
| SKEW | -0.13 | -0.08 | -0.47 | 0.00 | -0.01 | 0.53 | 3.10 | 1.83 | 0.72 | -0.23 | -0.12 | -0.22 | -0.32 | |||||||||||||
| MAX | 1370.00 | 1117.50 | 989.00 | 739.50 | 487.00 | 154.50 | 46.00 | 60.50 | 302.00 | 670.50 | 1026.00 | 1350.00 | 6995.00 | |||||||||||||
| MIN | 864.00 | 706.50 | 564.00 | 336.00 | 99.50 | 6.50 | 0.00 | 0.00 | 4.50 | 136.00 | 547.50 | 808.00 | 5194.00 | |||||||||||||
| NO YRS | 57 | 58 | 58 | 57 | 57 | 54 | 57 | 58 | 58 | 58 | 57 | 57 | 53 | |||||||||||||