| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1962 | 0.00 | z | 1057.00 | b | 1027.00 | 553.50 | 332.00 | 160.50 | 42.00 | 53.50 | 228.50 | 431.50 | 756.96 | b | 1059.50 | 5701.96 | ||||||||||
| 1963 | 1552.00 | 945.26 | a | 812.00 | 640.50 | 373.50 | 108.00 | 12.00 | 25.50 | 55.80 | e | 242.00 | 753.00 | 1215.50 | 6735.06 | |||||||||||
| 1964 | 1122.50 | 1127.50 | 1151.50 | 690.50 | 353.00 | 168.50 | 2.50 | 110.00 | 224.50 | 411.50 | 875.50 | 1196.00 | 7433.50 | |||||||||||||
| 1965 | 1044.00 | 1088.50 | 1386.50 | 626.50 | 426.00 | 163.50 | 18.50 | 68.50 | 573.00 | 351.00 | 730.00 | 948.00 | 7424.00 | |||||||||||||
| 1966 | 1392.00 | 1092.00 | 850.00 | 820.00 | 309.00 | 141.00 | 5.50 | 128.00 | 184.50 | 508.50 | 860.00 | 1116.50 | 7407.00 | |||||||||||||
| 1967 | 1109.50 | 1017.00 | 939.00 | 670.50 | 565.00 | 235.50 | 11.88 | a | 24.28 | a | 179.00 | 468.50 | 881.50 | 1276.50 | 7378.17 | |||||||||||
| 1968 | 1134.00 | 1029.00 | 793.50 | 732.00 | 513.00 | 147.50 | 32.50 | 98.00 | 205.50 | 420.00 | 933.50 | 1331.50 | 7370.00 | |||||||||||||
| 1969 | 1336.10 | a | 1014.50 | 1140.50 | 495.00 | 294.50 | 264.50 | 7.50 | 8.00 | 67.00 | 784.50 | 777.50 | 1055.00 | 7244.60 | ||||||||||||
| 1970 | 1298.50 | 912.50 | 1152.68 | a | 815.50 | 298.50 | 67.00 | 8.00 | 2.00 | 248.00 | 665.00 | 928.50 | 1140.50 | 7536.68 | ||||||||||||
| 1971 | 1312.00 | 1085.00 | 1061.50 | 685.00 | 441.00 | 81.00 | 54.50 | 3.00 | 253.00 | f | 648.86 | b | 992.07 | a | 1204.50 | 7568.43 | ||||||||||
| 1972 | 1502.50 | 990.00 | 821.50 | 707.00 | 398.00 | 108.00 | 85.50 | 56.00 | 223.00 | 578.00 | 962.50 | 1353.50 | 7785.50 | |||||||||||||
| 1973 | 1147.50 | 914.50 | 890.06 | e | 746.50 | 410.50 | 123.50 | 46.00 | 5.00 | 266.50 | 443.50 | 939.50 | 1111.50 | 7044.56 | ||||||||||||
| 1974 | 1251.50 | 879.00 | 876.50 | 613.00 | 387.00 | 108.50 | 0.50 | 64.58 | a | 241.50 | 387.50 | 861.00 | 1044.50 | 6715.08 | ||||||||||||
| 1975 | 1221.50 | 1137.00 | 1118.00 | 789.00 | 0.00 | z | 165.50 | 11.50 | 41.00 | 207.50 | 442.50 | 899.50 | 979.00 | 7012.00 | ||||||||||||
| 1976 | 1170.00 | 874.50 | 1005.95 | a | 616.00 | 244.50 | g | 122.50 | 15.00 | 18.00 | 152.50 | 621.50 | 960.50 | 1058.00 | 6614.45 | |||||||||||
| 1977 | 1413.00 | 880.00 | 980.00 | 516.50 | 227.50 | 50.17 | a | 15.50 | b | 83.00 | 169.50 | 466.50 | 921.50 | 1238.50 | 6961.67 | |||||||||||
| 1978 | 1444.50 | 1222.00 | 874.00 | 720.00 | 436.50 | 129.50 | 52.70 | a | 70.50 | 170.50 | 470.00 | 1012.00 | 1410.50 | 8012.70 | ||||||||||||
| 1979 | 1599.50 | 1112.50 | 933.50 | 753.00 | 465.00 | 190.50 | 33.00 | 77.00 | 72.00 | 490.50 | 990.00 | 899.50 | 7616.00 | |||||||||||||
| 1980 | 1328.50 | 1067.00 | 1034.37 | a | 631.00 | 405.00 | 100.00 | 5.50 | 71.96 | c | 190.00 | 541.00 | 803.79 | a | 980.12 | a | 7158.24 | |||||||||
| 1981 | 939.00 | 1001.00 | 819.50 | 473.50 | 469.00 | 131.00 | 37.50 | 20.50 | 141.00 | 573.00 | 663.10 | a | 1145.50 | 6413.60 | ||||||||||||
| 1982 | 1449.00 | 1054.00 | 998.00 | 764.00 | 458.00 | 259.00 | 13.00 | 35.50 | 254.50 | 623.50 | 977.50 | 1107.50 | 7993.50 | |||||||||||||
| 1983 | 995.50 | 811.00 | 966.00 | 852.50 | 522.50 | 181.50 | 13.00 | 0.00 | 225.00 | 522.50 | 907.50 | 1600.00 | 7597.00 | |||||||||||||
| 1984 | 1115.50 | 904.50 | 1027.50 | 763.50 | 459.00 | 176.00 | 18.00 | 3.50 | 367.50 | 616.50 | 803.50 | 1203.00 | 7458.00 | |||||||||||||
| 1985 | 1291.00 | 1140.00 | 888.00 | 480.00 | 176.50 | 182.00 | 26.50 | 51.15 | a | 354.50 | 588.50 | 1343.50 | 1254.50 | 7776.15 | ||||||||||||
| 1986 | 868.00 | 1039.50 | 712.50 | 685.00 | 394.50 | 63.50 | 22.50 | 26.50 | 387.50 | 553.50 | 956.50 | 1014.50 | 6724.00 | |||||||||||||
| 1987 | 1063.00 | 901.00 | 996.00 | 442.00 | 271.00 | 79.00 | 27.00 | 101.50 | 201.50 | 561.50 | 761.00 | 1107.50 | 6512.00 | |||||||||||||
| 1988 | 1250.00 | 1090.50 | 560.00 | l | 562.00 | 296.50 | 30.50 | 22.50 | 26.50 | 201.00 | 517.50 | 892.00 | 1074.50 | 5963.50 | ||||||||||||
| 1989 | 1055.50 | 1423.00 | 1010.00 | 675.00 | 355.50 | 168.00 | 19.50 | 18.00 | 234.50 | 557.00 | 883.50 | 1341.00 | 7740.50 | |||||||||||||
| 1990 | 685.00 | i | 1021.00 | 951.00 | 688.00 | 491.00 | 130.00 | 70.50 | 17.50 | 131.00 | 566.50 | 712.50 | 1374.00 | 6153.00 | ||||||||||||
| 1991 | 1308.00 | 788.50 | 893.00 | 685.00 | 376.50 | 73.00 | 24.00 | 13.00 | 211.00 | 597.50 | 1040.50 | 956.00 | 6966.00 | |||||||||||||
| 1992 | 968.00 | 832.50 | 827.00 | 596.50 | 338.50 | 201.50 | 177.50 | 148.00 | 209.00 | 562.50 | 1030.86 | a | 1325.00 | 7216.86 | ||||||||||||
| 1993 | 1269.00 | 1232.50 | 929.00 | 772.50 | 405.00 | 262.00 | 135.50 | 103.50 | 410.00 | 642.50 | 1087.00 | 1079.00 | 8327.50 | |||||||||||||
| 1994 | 1242.00 | 1244.00 | 904.00 | 680.00 | 266.00 | 88.00 | 51.50 | 50.00 | 148.50 | 588.00 | 918.50 | 991.00 | 7171.50 | |||||||||||||
| 1995 | 1051.00 | 987.50 | 998.00 | 906.00 | 610.00 | 235.50 | 51.50 | 12.50 | 301.50 | 653.00 | 887.50 | 1086.00 | 7780.00 | |||||||||||||
| 1996 | 1397.50 | 1058.50 | 1228.00 | 688.00 | 594.00 | 105.50 | 46.00 | 20.87 | e | 327.50 | 616.50 | 1134.50 | 1271.50 | 8488.37 | ||||||||||||
| 1997 | 1317.00 | 1026.50 | 884.00 | 904.50 | 569.22 | b | 105.50 | 77.00 | 94.50 | 172.50 | 528.00 | 928.50 | 1056.00 | 7663.22 | ||||||||||||
| 1998 | 1156.00 | 883.00 | 1137.00 | 670.00 | 380.00 | 331.00 | 27.00 | 23.00 | 137.00 | 596.00 | 838.97 | a | 1181.00 | 7359.97 | ||||||||||||
| 1999 | 1141.00 | 867.50 | 870.50 | 811.50 | 470.50 | 201.00 | 49.00 | 21.00 | 331.50 | 485.00 | 546.50 | 992.50 | 6787.50 | |||||||||||||
| 2000 | 1122.00 | 855.50 | 868.00 | 699.00 | 358.50 | 193.00 | 28.00 | 8.50 | 196.50 | 514.50 | 1149.00 | 1338.00 | 7330.50 | |||||||||||||
| 2001 | 1047.00 | 1227.50 | 966.50 | 649.00 | 398.50 | 195.00 | 10.50 | 1.50 | 207.50 | 599.00 | 663.62 | a | 1118.50 | 7084.12 | ||||||||||||
| 2002 | 1177.00 | 948.50 | 1326.00 | 756.50 | 565.50 | 106.00 | 8.00 | 51.00 | 260.50 | 0.00 | z | 838.00 | 1006.50 | 7043.50 | ||||||||||||
| 2003 | 1101.50 | 1160.00 | 1008.50 | 639.00 | 447.50 | 236.00 | 0.50 | 30.00 | 279.50 | 422.00 | 1050.00 | 1026.10 | a | 7400.60 | ||||||||||||
| 2004 | 1153.50 | 1000.00 | 835.00 | 614.00 | 435.50 | 244.00 | 61.00 | 105.50 | 249.50 | 555.00 | 862.50 | 1044.00 | 7159.50 | |||||||||||||
| 2005 | 1191.00 | 903.50 | 963.00 | 649.00 | 513.00 | 148.00 | 34.50 | 71.50 | 159.00 | 504.00 | 797.50 | 1218.00 | 7152.00 | |||||||||||||
| 2006 | 924.66 | b | 1124.00 | 995.50 | 552.50 | 358.50 | 60.50 | 4.00 | 70.00 | 331.50 | 704.00 | 836.50 | 1048.50 | 7010.16 | ||||||||||||
| 2007 | 1243.00 | 1174.50 | 727.50 | 786.00 | 315.50 | 85.00 | 7.50 | 41.50 | 212.00 | 512.00 | 826.50 | 1229.50 | 7160.50 | |||||||||||||
| 2008 | 1281.50 | 1094.00 | 1038.50 | 0.00 | z | 0.00 | z | 214.66 | a | 25.50 | 45.00 | 281.50 | 624.00 | 809.00 | 1372.00 | 6785.66 | ||||||||||
| 2009 | 1168.00 | 1002.50 | 941.00 | 793.50 | 427.00 | 264.50 | 62.50 | 86.00 | 170.50 | 925.00 | 681.21 | a | 1447.59 | c | 7969.30 | |||||||||||
| 2010 | 1095.50 | 1170.50 | 812.50 | 689.00 | 577.50 | 199.00 | 50.00 | 22.50 | 172.00 | 412.00 | 968.00 | 1102.00 | 7270.50 | |||||||||||||
| 2011 | 1271.00 | 1179.11 | a | 990.50 | 767.00 | 580.00 | 167.00 | 14.50 | 28.00 | 183.50 | 519.00 | 892.00 | 1091.00 | 7682.61 | ||||||||||||
| 2012 | 1093.50 | 1125.50 | 567.00 | 542.50 | 401.00 | 69.50 | 5.50 | 22.00 | 102.00 | 647.00 | 743.50 | 1112.00 | 6431.00 | |||||||||||||
| 2013 | 1135.50 | 1008.00 | 1010.00 | 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 | 3153.50 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1205.20 | 1033.15 | 959.54 | 681.15 | 414.92 | 153.35 | 32.96 | 46.62 | 224.22 | 545.18 | 887.64 | 1155.54 | 7336.03 | |||||||||||||
| S.D. | 161.21 | 130.26 | 146.97 | 107.84 | 100.60 | 67.60 | 33.20 | 37.00 | 93.18 | 111.87 | 139.00 | 148.83 | 470.61 | |||||||||||||
| SKEW | 0.31 | 0.33 | 0.41 | -0.16 | 0.02 | 0.36 | 2.29 | 0.77 | 1.14 | 0.41 | 0.44 | 0.70 | 0.15 | |||||||||||||
| MAX | 1599.50 | 1423.00 | 1386.50 | 906.00 | 610.00 | 331.00 | 177.50 | 148.00 | 573.00 | 925.00 | 1343.50 | 1600.00 | 8488.37 | |||||||||||||
| MIN | 868.00 | 788.50 | 567.00 | 442.00 | 176.50 | 30.50 | 0.50 | 0.00 | 55.80 | 242.00 | 546.50 | 899.50 | 6413.60 | |||||||||||||
| NO YRS | 50 | 52 | 51 | 50 | 48 | 51 | 51 | 51 | 50 | 50 | 51 | 51 | 43 | |||||||||||||