| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1966 | 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 | 972.50 | 1240.00 | 2212.50 | |||
| 1967 | 1130.50 | 950.00 | 1159.00 | 838.50 | 471.00 | 289.50 | 27.50 | 33.00 | 183.00 | 616.00 | 977.50 | 1439.00 | 8114.50 | |||||||||||||
| 1968 | 1402.50 | 1092.00 | 842.50 | 760.50 | 544.00 | 260.00 | 70.00 | 165.50 | 314.50 | 588.50 | 1021.50 | 1412.50 | 8474.00 | |||||||||||||
| 1969 | 1599.00 | 1267.50 | 1287.02 | a | 577.50 | 360.50 | 282.50 | 73.50 | 39.00 | 211.00 | 845.00 | 887.50 | 1165.50 | 8595.52 | ||||||||||||
| 1970 | 1275.50 | 846.50 | 1120.50 | 877.00 | 403.00 | 161.00 | 46.00 | 25.50 | 428.79 | a | 742.00 | 959.00 | 1309.50 | 8194.29 | ||||||||||||
| 1971 | 1287.00 | 1008.50 | 1009.00 | 748.00 | 436.00 | 232.50 | 96.50 | 18.50 | 406.00 | 703.50 | 951.00 | 1406.50 | 8303.00 | |||||||||||||
| 1972 | 1427.50 | 1006.50 | 763.50 | 711.50 | 460.35 | a | 142.00 | 131.50 | 47.50 | 392.00 | 717.00 | 996.50 | 1462.50 | 8258.35 | ||||||||||||
| 1973 | 1476.00 | 1193.00 | 984.50 | 780.50 | 454.50 | 219.00 | 36.50 | 56.50 | 359.00 | 586.00 | 1087.50 | 1143.50 | 8376.50 | |||||||||||||
| 1974 | 1397.00 | 943.50 | 1036.50 | 583.00 | 545.50 | 137.50 | 27.50 | 135.00 | 335.00 | 569.50 | 926.00 | 1260.00 | 7896.00 | |||||||||||||
| 1975 | 1346.50 | 1275.00 | 1149.50 | 967.50 | 547.50 | 264.00 | 27.00 | 159.00 | 327.00 | 682.00 | 1074.00 | 1135.00 | 8954.00 | |||||||||||||
| 1976 | 1237.50 | 1021.50 | 1150.50 | 658.50 | 340.50 | 234.50 | 34.00 | 89.00 | 266.50 | 636.50 | 930.00 | 1111.00 | 7710.00 | |||||||||||||
| 1977 | 1436.00 | 898.50 | 1100.00 | 548.00 | 475.50 | 128.50 | 79.50 | 104.00 | 315.00 | 585.00 | 1020.00 | 1280.50 | 7970.50 | |||||||||||||
| 1978 | 1385.00 | 1143.00 | 877.00 | 255.50 | r | 492.50 | 221.00 | 80.50 | 114.50 | 300.50 | 558.00 | 1243.00 | 1533.50 | 7948.50 | ||||||||||||
| 1979 | 1865.50 | 1160.00 | 1001.50 | 698.00 | 423.00 | 181.00 | 33.00 | 60.50 | 155.50 | 539.50 | 1143.50 | 1044.00 | 8305.00 | |||||||||||||
| 1980 | 1544.50 | 1118.00 | 1090.50 | 577.50 | 395.50 | 208.50 | 47.50 | 134.00 | 276.50 | 600.50 | 945.50 | 1006.00 | 7944.50 | |||||||||||||
| 1981 | 1069.50 | 1053.50 | 822.50 | 625.50 | 453.00 | 263.00 | 54.50 | 22.00 | 239.50 | 689.50 | 885.00 | 1176.50 | 7354.00 | |||||||||||||
| 1982 | 1399.50 | 1159.00 | 991.50 | 820.50 | 525.50 | 253.50 | 85.50 | 38.50 | 367.50 | 657.50 | 1140.50 | 1320.50 | 8759.50 | |||||||||||||
| 1983 | 1032.00 | 897.50 | 854.00 | 794.50 | 518.50 | 243.00 | 102.50 | 26.00 | 370.50 | 598.00 | 945.00 | 1762.50 | 8144.00 | |||||||||||||
| 1984 | 1191.50 | 1013.00 | 918.00 | 721.00 | 434.50 | 296.00 | 47.50 | 23.00 | 412.00 | 768.50 | 955.50 | 1472.00 | 8252.50 | |||||||||||||
| 1985 | 1496.00 | 1256.50 | 1058.00 | 547.00 | 330.00 | 162.00 | 15.50 | 129.50 | 461.50 | 687.50 | 1434.00 | 1415.00 | 8992.50 | |||||||||||||
| 1986 | 1105.00 | 1081.50 | 676.00 | 658.50 | 426.00 | 90.50 | 111.50 | 36.00 | 440.50 | 599.00 | 1043.50 | 1294.50 | 7562.50 | |||||||||||||
| 1987 | 1302.00 | 940.00 | 844.00 | 436.50 | 306.50 | 154.00 | 114.50 | 165.00 | 234.50 | 563.50 | 962.50 | 1268.00 | 7291.00 | |||||||||||||
| 1988 | 1400.00 | 1032.00 | 931.50 | 572.50 | 340.50 | 79.00 | 25.00 | 65.50 | 344.00 | 457.00 | 1002.50 | 1304.00 | 7553.50 | |||||||||||||
| 1989 | 1262.50 | 1531.50 | 1069.50 | 658.00 | 475.00 | 196.00 | 19.00 | 123.00 | 298.50 | 641.00 | 852.00 | 1283.00 | 8409.00 | |||||||||||||
| 1990 | 1157.00 | 1070.50 | 971.00 | 595.00 | 514.00 | 244.00 | 49.00 | 78.00 | 136.00 | 576.00 | 839.50 | 1565.50 | 7795.50 | |||||||||||||
| 1991 | 1329.50 | 787.00 | 964.50 | 717.50 | 477.00 | 236.50 | 27.50 | 8.50 | 244.00 | 663.00 | 1101.50 | 1134.50 | 7691.00 | |||||||||||||
| 1992 | 1166.50 | 870.00 | 711.00 | 547.00 | 290.50 | 155.50 | 154.00 | 136.50 | 277.00 | 521.00 | 1039.50 | 1491.50 | 7360.00 | |||||||||||||
| 1993 | 1493.00 | 1313.00 | 866.00 | 662.50 | 316.00 | 275.50 | 258.50 | 211.00 | 344.50 | 633.00 | 1126.00 | 1154.00 | 8653.00 | |||||||||||||
| 1994 | 1005.50 | 1140.50 | 816.00 | 605.50 | 298.00 | 195.00 | 73.00 | 29.50 | 186.00 | 666.50 | 1139.50 | 1248.00 | 7403.00 | |||||||||||||
| 1995 | 1290.00 | 904.00 | 969.00 | 722.50 | 486.00 | 249.50 | 66.50 | 91.00 | 307.00 | 694.50 | 842.50 | 1175.50 | 7798.00 | |||||||||||||
| 1996 | 1402.50 | 1109.50 | 1099.00 | 581.50 | 544.00 | 138.50 | 20.00 | 62.52 | a | 354.31 | a | 657.50 | 1083.50 | 1318.00 | 8370.83 | |||||||||||
| 1997 | 1386.00 | 1043.00 | 853.50 | 812.00 | 326.00 | 162.50 | 80.50 | 66.00 | 210.00 | 637.50 | 977.00 | 1308.00 | 7862.00 | |||||||||||||
| 1998 | 1242.50 | 992.00 | 989.00 | 609.00 | 315.50 | 318.00 | 5.00 | 12.50 | 166.50 | 604.50 | 832.50 | 1283.00 | 7370.00 | |||||||||||||
| 1999 | 1097.63 | d | 925.56 | a | 874.20 | a | 719.50 | 480.00 | 235.34 | a | 65.62 | a | 15.50 | 338.50 | 506.50 | 674.50 | 1120.00 | 7052.85 | ||||||||
| 2000 | 1173.50 | 909.00 | 843.00 | 542.00 | 374.07 | a | 187.50 | 25.00 | 13.00 | 285.00 | 613.50 | 1301.00 | 1402.50 | 7669.07 | ||||||||||||
| 2001 | 1326.50 | 1232.50 | 929.50 | 653.00 | 304.50 | 231.21 | a | 31.00 | 4.50 | 153.00 | 616.50 | 790.00 | 1234.12 | b | 7506.33 | |||||||||||
| 2002 | 1237.00 | 1100.00 | 1171.50 | 712.00 | 0.00 | z | 219.00 | 12.00 | 135.50 | 269.00 | 784.50 | 976.00 | 1117.50 | 7734.00 | ||||||||||||
| 2003 | 1072.50 | 1171.00 | 916.50 | 607.00 | 442.00 | 209.50 | 4.50 | 35.00 | 284.00 | 490.00 | 1119.00 | 1165.00 | 7516.00 | |||||||||||||
| 2004 | 1328.00 | 1085.50 | 741.50 | 531.50 | 446.50 | 232.50 | 37.00 | 97.00 | 296.50 | 579.50 | 922.50 | 1085.00 | 7383.00 | |||||||||||||
| 2005 | 1292.50 | 934.00 | 850.50 | 616.00 | 476.50 | 313.50 | 29.50 | 62.00 | 228.50 | 512.50 | 934.50 | 1336.00 | 7586.00 | |||||||||||||
| 2006 | 1028.50 | 1097.50 | 948.50 | 594.50 | 379.50 | 175.96 | d | 1.00 | k | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 4224.46 | ||||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1302.42 | 1064.31 | 956.27 | 666.36 | 426.38 | 211.95 | 59.61 | 73.54 | 295.35 | 625.31 | 1001.36 | 1284.58 | 7957.60 | |||||||||||||
| S.D. | 175.71 | 148.69 | 138.83 | 110.55 | 79.83 | 58.22 | 48.61 | 53.93 | 83.88 | 82.56 | 141.01 | 157.93 | 501.43 | |||||||||||||
| SKEW | 0.60 | 0.68 | 0.16 | 0.55 | -0.22 | -0.29 | 1.99 | 0.65 | -0.05 | 0.39 | 0.65 | 0.68 | 0.29 | |||||||||||||
| MAX | 1865.50 | 1531.50 | 1287.02 | 967.50 | 547.50 | 318.00 | 258.50 | 211.00 | 461.50 | 845.00 | 1434.00 | 1762.50 | 8992.50 | |||||||||||||
| MIN | 1005.50 | 787.00 | 676.00 | 436.50 | 290.50 | 79.00 | 4.50 | 4.50 | 136.00 | 457.00 | 674.50 | 1006.00 | 7052.85 | |||||||||||||
| NO YRS | 40 | 40 | 40 | 39 | 39 | 40 | 39 | 39 | 39 | 39 | 40 | 40 | 37 | |||||||||||||