| 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 | 659.50 | 362.46 | e | 153.46 | d | 17.00 | l | 4.00 | i | 285.00 | 474.30 | a | 1075.00 | 1164.50 | 4174.22 | |||||
| 1951 | 1602.00 | 1240.50 | 1406.50 | 663.62 | a | 297.94 | d | 269.50 | 41.50 | 64.00 | 347.59 | a | 697.50 | 975.50 | 1739.32 | c | 9345.47 | |||||||||
| 1952 | 1672.45 | a | 1158.00 | 1241.60 | b | 427.78 | c | 214.00 | f | 69.00 | 19.38 | c | 24.28 | a | 95.50 | h | 524.42 | a | 984.11 | b | 1192.50 | 7313.51 | ||||
| 1953 | 1118.07 | a | 713.00 | g | 879.88 | a | 759.31 | a | 423.84 | b | 121.67 | c | 0.57 | d | 16.05 | c | 112.80 | e | 415.50 | 780.00 | d | 1068.43 | b | 5696.13 | ||
| 1954 | 2010.98 | d | 759.00 | 1018.50 | f | 767.22 | c | 349.86 | c | 193.45 | a | 10.16 | b | 6.50 | k | 158.50 | n | 508.50 | f | 721.15 | d | 1106.04 | c | 5917.85 | ||
| 1955 | 1520.66 | c | 1296.08 | b | 524.00 | r | 243.00 | r | 465.55 | c | 160.56 | c | 64.14 | b | 3.44 | d | 362.88 | d | 533.20 | a | 1206.50 | f | 1606.26 | d | 6012.77 | |
| 1956 | 1268.00 | g | 1328.50 | 618.00 | h | 664.29 | b | 310.53 | b | 45.60 | e | 13.50 | 45.97 | b | 204.60 | e | 446.50 | g | 658.50 | f | 721.50 | l | 2612.99 | |||
| 1957 | 1896.50 | 1398.92 | b | 264.00 | v | 0.00 | z | 210.00 | f | 75.50 | f | 4.43 | c | 24.00 | i | 194.00 | f | 522.00 | k | 986.90 | a | 752.50 | h | 4286.75 | ||
| 1958 | 1111.87 | a | 782.50 | l | 921.00 | h | 561.50 | f | 117.50 | m | 233.00 | 97.02 | d | 5.17 | a | 178.00 | g | 550.25 | e | 845.00 | f | 1409.39 | c | 3406.69 | ||
| 1959 | 1234.50 | g | 1619.13 | e | 652.50 | h | 626.25 | b | 527.60 | e | 118.00 | 48.50 | 99.50 | h | 280.00 | g | 408.00 | j | 935.50 | g | 689.50 | j | 2939.48 | |||
| 1960 | 1147.00 | g | 0.00 | z | 671.50 | h | 501.00 | f | 248.00 | j | 38.00 | m | 7.50 | 42.00 | g | 180.00 | g | 263.50 | j | 722.00 | i | 1087.00 | f | 7.50 | ||
| 1961 | 542.00 | m | 479.50 | k | 370.50 | p | 542.00 | i | 208.00 | g | 8.50 | i | 1.50 | 4.00 | g | 0.00 | z | 0.00 | z | 723.00 | m | 1626.47 | a | 1627.97 | ||
| 1962 | 0.00 | z | 0.00 | z | 784.00 | g | 429.50 | 299.50 | 74.50 | 15.00 | 38.75 | a | 228.00 | 449.50 | 778.00 | 1079.00 | 3391.75 | |||||||||
| 1963 | 1706.50 | 893.00 | 768.50 | 595.50 | 277.50 | 82.50 | 20.50 | 19.50 | 77.50 | 361.50 | 957.00 | 1424.50 | 7184.00 | |||||||||||||
| 1964 | 1199.00 | 908.00 | 1110.50 | 624.50 | 294.50 | 84.00 | 1.50 | 92.50 | 329.00 | 515.00 | 1090.18 | b | 1910.50 | 8159.18 | ||||||||||||
| 1965 | 1637.00 | 1228.50 | 1396.50 | 661.50 | 415.00 | 161.00 | 19.50 | 61.50 | 506.50 | 378.50 | 1047.50 | 1246.50 | 8759.50 | |||||||||||||
| 1966 | 1783.00 | 1225.50 | 883.50 | 688.50 | 255.00 | 137.00 | 2.00 | 54.00 | 101.50 | 541.00 | 1184.50 | 1345.50 | 8201.00 | |||||||||||||
| 1967 | 1281.00 | 909.50 | 1127.00 | 840.00 | 393.00 | 154.50 | 4.50 | 4.50 | 146.00 | 498.00 | 958.50 | 1407.50 | 7724.00 | |||||||||||||
| 1968 | 1505.50 | 1069.00 | 782.00 | 669.00 | 373.00 | 140.50 | 13.50 | 51.00 | 245.50 | 586.50 | 878.50 | 1628.50 | 7942.50 | |||||||||||||
| 1969 | 2202.50 | 1464.50 | 1227.50 | 432.50 | 253.50 | 153.00 | 22.50 | 15.00 | 151.50 | 759.50 | 827.50 | 1247.00 | 8756.50 | |||||||||||||
| 1970 | 1662.00 | 1015.50 | 1112.00 | 731.00 | 301.50 | 53.50 | 6.00 | 9.50 | 304.00 | 676.50 | 1131.50 | 1528.50 | 8531.50 | |||||||||||||
| 1971 | 1644.50 | 1082.50 | 1002.50 | 600.00 | 292.43 | a | 117.50 | 20.00 | 3.00 | 284.50 | 595.50 | 888.00 | 1599.60 | a | 8130.03 | |||||||||||
| 1972 | 1762.50 | 1406.00 | 809.50 | 611.00 | 288.50 | 44.50 | 66.00 | 6.50 | 320.00 | 666.50 | 905.00 | 1544.00 | 8430.00 | |||||||||||||
| 1973 | 1240.50 | 1085.50 | 822.50 | 693.00 | 283.00 | 112.50 | 9.50 | 13.50 | 232.00 | 502.00 | 1202.00 | 1142.50 | 7338.50 | |||||||||||||
| 1974 | 1493.50 | 947.50 | 939.00 | 482.50 | 418.00 | 57.50 | 2.21 | c | 95.00 | 293.00 | 488.50 | 843.00 | 1092.50 | 7152.21 | ||||||||||||
| 1975 | 1329.00 | 1455.50 | 1126.50 | 924.00 | 401.50 | 137.00 | 8.00 | 54.50 | 239.50 | 601.50 | 999.50 | 1160.00 | 8436.50 | |||||||||||||
| 1976 | 1260.15 | a | 947.00 | 951.00 | 476.50 | 196.50 | 134.00 | 5.50 | 18.50 | 164.00 | 588.00 | 934.50 | 1048.00 | 6723.65 | ||||||||||||
| 1977 | 1527.00 | 749.00 | 866.00 | 442.00 | 247.50 | 21.50 | 19.12 | a | 124.50 | 242.07 | a | 537.50 | 1071.00 | 1539.00 | 7386.19 | |||||||||||
| 1978 | 1892.50 | 1465.50 | 1012.00 | 517.50 | 323.95 | a | 72.86 | b | 28.00 | 57.00 | 201.00 | 523.38 | a | 1237.76 | a | 1470.50 | 8801.95 | |||||||||
| 1979 | 1968.00 | 1454.00 | 912.50 | 667.00 | 364.00 | 71.50 | 16.07 | d | 12.00 | 90.00 | 445.50 | 971.38 | a | 1047.00 | 8018.95 | |||||||||||
| 1980 | 1581.50 | 1170.50 | 1026.50 | 355.00 | 182.00 | 75.50 | 13.00 | 83.00 | 199.00 | 486.00 | 822.00 | 1341.78 | a | 7335.78 | ||||||||||||
| 1981 | 1063.50 | 960.00 | 776.00 | 473.00 | 269.50 | 142.50 | 9.00 | 6.00 | 165.00 | 526.00 | 743.50 | 1313.00 | 6447.00 | |||||||||||||
| 1982 | 1914.50 | 1296.00 | 1014.50 | 715.00 | 426.80 | c | 85.50 | 21.50 | 22.50 | 249.50 | 569.00 | 1085.50 | 1204.00 | 8604.30 | ||||||||||||
| 1983 | 1126.00 | 825.00 | 843.00 | 636.00 | 345.00 | 91.50 | 31.00 | 1.50 | 273.00 | 479.50 | 924.00 | 2056.00 | 7631.50 | |||||||||||||
| 1984 | 1159.50 | 798.50 | 906.50 | 531.00 | 306.50 | 120.00 | 5.50 | 14.50 | 383.00 | 714.50 | 915.00 | 1622.50 | 7477.00 | |||||||||||||
| 1985 | 1495.50 | 1249.50 | 898.50 | 456.00 | 188.50 | 87.00 | 2.00 | 86.50 | 431.90 | a | 604.00 | 1569.00 | 1300.50 | 8368.90 | ||||||||||||
| 1986 | 952.50 | 1378.00 | 628.00 | 610.00 | 325.50 | 26.00 | 38.00 | 19.00 | 413.00 | 531.00 | 1112.00 | 1085.00 | 7118.00 | |||||||||||||
| 1987 | 1109.50 | 887.00 | 872.50 | 406.50 | 221.50 | 50.00 | 39.50 | 99.50 | 176.00 | 595.00 | 820.00 | 1176.50 | 6453.50 | |||||||||||||
| 1988 | 1365.00 | 1091.00 | 817.50 | 482.50 | 177.50 | 32.50 | 7.00 | 21.00 | 267.50 | 508.50 | 928.00 | 1243.00 | 6941.00 | |||||||||||||
| 1989 | 1234.00 | 1563.00 | 1220.50 | 599.00 | 336.50 | 76.50 | 2.50 | 53.00 | 248.00 | 569.00 | 857.50 | 1326.00 | 8085.50 | |||||||||||||
| 1990 | 1092.50 | 1064.00 | 888.50 | 600.50 | 379.50 | 161.50 | 12.50 | 15.50 | 117.50 | 602.00 | 884.00 | 1511.00 | 7329.00 | |||||||||||||
| 1991 | 1538.50 | 751.50 | 917.50 | 577.00 | 325.50 | 101.50 | 3.00 | 0.00 | 196.50 | 715.50 | 1078.00 | 1072.00 | 7276.50 | |||||||||||||
| 1992 | 973.50 | 935.00 | 763.50 | 505.50 | 266.00 | 93.50 | 65.50 | 123.50 | 275.50 | 536.00 | 922.00 | 1505.00 | 6964.50 | |||||||||||||
| 1993 | 1763.00 | 1368.50 | 830.00 | 562.00 | 210.50 | 151.50 | 139.50 | 94.50 | 322.50 | 566.00 | 1101.50 | 1067.50 | 8177.00 | |||||||||||||
| 1994 | 1421.50 | 1469.00 | 786.00 | 553.00 | 250.00 | 96.50 | 18.00 | 21.00 | 100.00 | 624.00 | 1030.00 | 1238.50 | 7607.50 | |||||||||||||
| 1995 | 1326.50 | 1016.00 | 1052.50 | 679.00 | 331.00 | 127.50 | 24.00 | 38.50 | 239.00 | 619.50 | 971.50 | 1454.00 | 7879.00 | |||||||||||||
| 1996 | 1737.03 | a | 1150.00 | 1217.00 | 536.50 | 447.50 | 84.50 | 21.00 | 18.50 | 270.00 | 632.50 | 1322.00 | 1555.50 | 8992.03 | ||||||||||||
| 1997 | 1585.00 | 919.50 | 926.50 | 743.00 | 315.50 | 66.00 | 25.50 | 28.50 | 117.50 | 546.50 | 986.50 | 1114.50 | 7374.50 | |||||||||||||
| 1998 | 1476.00 | 868.50 | 980.50 | 473.50 | 232.50 | 166.00 | 0.00 | 1.50 | 115.50 | 549.00 | 867.50 | 1275.00 | 7005.50 | |||||||||||||
| 1999 | 1217.50 | 818.00 | 775.50 | 650.00 | 351.50 | 108.50 | 65.50 | 6.00 | 273.50 | 514.00 | 737.50 | 914.50 | 6432.00 | |||||||||||||
| 2000 | 1342.50 | 1159.50 | 816.00 | 510.50 | 315.00 | 132.50 | 7.00 | 19.00 | 235.50 | 611.00 | 1129.50 | 1554.13 | a | 7832.13 | ||||||||||||
| 2001 | 1226.00 | 1406.50 | 862.00 | 596.00 | 232.50 | 104.00 | 7.00 | 1.50 | 123.50 | 615.50 | 816.00 | 1255.00 | 7245.50 | |||||||||||||
| 2002 | 1227.50 | 967.50 | 1474.50 | 716.00 | 398.00 | 136.00 | 13.00 | 115.50 | 227.00 | 797.00 | 806.00 | 1138.50 | 8016.50 | |||||||||||||
| 2003 | 1184.50 | 1186.50 | 1043.50 | 462.50 | 398.50 | 113.00 | 5.00 | 17.50 | 263.50 | 451.00 | 1166.50 | 1116.00 | 7408.00 | |||||||||||||
| 2004 | 1567.50 | 1145.50 | 737.00 | 490.50 | 422.00 | 183.50 | 14.50 | 46.50 | 267.00 | 665.50 | 868.00 | 1111.50 | 7519.00 | |||||||||||||
| 2005 | 1457.50 | 953.00 | 882.50 | 562.50 | 368.50 | 118.00 | 12.50 | 68.00 | 219.00 | 510.00 | 832.50 | 1378.50 | 7362.50 | |||||||||||||
| 2006 | 903.00 | 1060.50 | 994.00 | 483.00 | 281.50 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 3722.00 | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1452.31 | 1128.70 | 964.41 | 588.82 | 321.55 | 111.41 | 21.64 | 38.23 | 237.50 | 560.94 | 974.47 | 1332.75 | 7725.12 | |||||||||||||
| S.D. | 301.78 | 234.76 | 187.02 | 118.34 | 78.35 | 50.04 | 25.94 | 35.72 | 94.16 | 90.98 | 163.78 | 239.57 | 709.46 | |||||||||||||
| SKEW | 0.29 | 0.21 | 0.92 | 0.37 | 0.22 | 0.63 | 2.48 | 0.96 | 0.45 | 0.32 | 1.07 | 0.75 | 0.17 | |||||||||||||
| MAX | 2202.50 | 1619.13 | 1474.50 | 924.00 | 527.60 | 269.50 | 139.50 | 124.50 | 506.50 | 797.00 | 1569.00 | 2056.00 | 9345.47 | |||||||||||||
| MIN | 903.00 | 749.00 | 628.00 | 355.00 | 177.50 | 21.50 | 0.00 | 0.00 | 77.50 | 361.50 | 721.15 | 914.50 | 6432.00 | |||||||||||||
| NO YRS | 51 | 51 | 47 | 52 | 52 | 53 | 55 | 50 | 49 | 50 | 50 | 52 | 44 | |||||||||||||