| 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 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1949 | 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 | |
| 1950 | 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 | |
| 1951 | 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 | |
| 1952 | 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 | |
| 1953 | 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 | |
| 1954 | 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 | |
| 1955 | 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 | |
| 1956 | 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 | |
| 1957 | 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 | |
| 1958 | 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 | |
| 1959 | 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 | |
| 1960 | 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 | |
| 1961 | 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 | |
| 1962 | 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 | |
| 1963 | 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 | |
| 1964 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 142.00 | p | 62.50 | 215.00 | 390.50 | 671.00 | 1054.50 | 1383.00 | 3776.50 | |||||||
| 1965 | 1318.00 | 1281.00 | 1411.00 | 814.00 | 594.00 | 348.50 | 162.00 | 223.50 | 523.00 | 607.50 | 909.00 | 1252.00 | 9443.50 | |||||||||||||
| 1966 | 1505.00 | 1351.00 | 1065.00 | 812.50 | 494.50 | 288.50 | 56.00 | 191.00 | 334.50 | 751.50 | 920.50 | 1432.50 | 9202.50 | |||||||||||||
| 1967 | 1349.50 | 1236.50 | 983.00 | 802.50 | 650.50 | 391.50 | 132.50 | 182.00 | 370.50 | 681.50 | 1002.00 | 1493.00 | 9275.00 | |||||||||||||
| 1968 | 1401.00 | 1186.00 | 1184.00 | 1008.00 | 653.00 | 274.00 | 134.50 | 268.50 | 445.00 | 693.50 | 1218.00 | 1414.50 | 9880.00 | |||||||||||||
| 1969 | 1262.00 | 1245.00 | 1333.00 | 730.50 | 428.00 | 390.50 | 89.90 | a | 96.00 | 319.00 | 922.50 | 1150.50 | 1309.50 | 9276.40 | ||||||||||||
| 1970 | 1380.00 | 1136.00 | 1247.50 | 1019.00 | 529.00 | 328.00 | 132.50 | 98.50 | 425.00 | 923.00 | 1059.50 | 1358.50 | 9636.50 | |||||||||||||
| 1971 | 1373.50 | 1272.00 | 1221.00 | 832.00 | 591.50 | 274.00 | 128.50 | 106.00 | 475.00 | 752.00 | 1133.50 | 1499.50 | 9658.50 | |||||||||||||
| 1972 | 1456.50 | 1183.00 | 974.00 | 736.00 | 584.00 | 235.50 | 153.50 | 172.00 | 402.00 | 695.50 | 1251.00 | 1504.02 | a | 9347.02 | ||||||||||||
| 1973 | 1570.50 | 1266.00 | 1236.00 | 1004.50 | 567.00 | 332.50 | 182.50 | 127.50 | 422.00 | 639.00 | 1030.00 | 1386.50 | 9764.00 | |||||||||||||
| 1974 | 1544.00 | 1391.50 | 1055.03 | a | 965.50 | 468.10 | a | 253.50 | 149.50 | 266.50 | 457.50 | 623.00 | 1048.50 | 1509.50 | 9732.13 | |||||||||||
| 1975 | 1451.00 | 1283.50 | 1165.00 | 942.50 | 599.00 | 350.00 | 118.00 | 209.00 | 414.00 | 674.00 | 1112.59 | a | 1287.00 | 9605.59 | ||||||||||||
| 1976 | 1431.50 | 1093.50 | 1268.02 | e | 783.00 | 533.00 | 40.00 | y | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 5109.02 | |||||
| 1977 | 184.50 | z | 919.50 | f | 1041.00 | g | 576.00 | i | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 269.50 | f | 676.50 | 893.00 | 1132.50 | 2702.00 | ||||
| 1978 | 1333.50 | 1123.00 | 994.14 | b | 726.50 | 562.65 | a | 245.00 | 119.50 | 183.50 | 344.00 | 657.00 | 1005.50 | 1591.00 | 8885.29 | |||||||||||
| 1979 | 1665.50 | 1196.22 | a | 1125.82 | a | 825.50 | 574.02 | a | 81.00 | x | 0.00 | z | 0.00 | z | 242.00 | k | 615.50 | 1323.50 | 1357.00 | 8683.06 | ||||||
| 1980 | 1410.00 | 1175.50 | 1229.00 | 892.50 | 613.05 | b | 249.50 | 89.38 | a | 197.50 | 340.00 | 766.73 | a | 985.00 | 1037.00 | 8985.17 | ||||||||||
| 1981 | 1173.50 | 1142.00 | 1070.53 | a | 633.10 | a | 572.00 | 230.50 | 91.50 | 161.50 | 286.00 | 770.00 | 948.89 | c | 1265.50 | 8345.03 | ||||||||||
| 1982 | 1442.00 | 1307.00 | 1150.00 | 941.50 | 646.50 | 376.50 | 171.00 | 113.00 | 395.00 | 818.50 | 1173.50 | 1354.00 | 9888.50 | |||||||||||||
| 1983 | 1303.50 | 1120.50 | 1096.00 | 983.00 | 683.00 | 385.50 | 139.00 | 86.50 | 324.00 | 670.50 | 1073.00 | 1451.50 | 9316.00 | |||||||||||||
| 1984 | 1594.00 | 1399.00 | 1213.00 | 1016.50 | 507.50 | 364.00 | 132.50 | 158.00 | 410.50 | 908.82 | a | 1099.50 | 1370.50 | 10173.82 | ||||||||||||
| 1985 | 1545.00 | 1013.50 | i | 1119.50 | 774.50 | 524.50 | 304.50 | 140.50 | 168.00 | 502.00 | 751.00 | 1150.00 | 1422.50 | 8402.00 | ||||||||||||
| 1986 | 1301.50 | 1121.50 | 942.00 | 800.00 | 610.00 | 232.00 | 199.50 | 181.00 | 493.00 | 760.03 | b | 1122.50 | 1362.00 | 9125.04 | ||||||||||||
| 1987 | 1476.50 | 1127.00 | 1214.50 | 746.50 | 539.50 | 295.50 | 181.50 | 254.50 | 429.00 | 659.00 | 1104.50 | 1455.50 | 9483.50 | |||||||||||||
| 1988 | 1547.00 | 1313.50 | 1190.00 | 714.50 | 515.50 | 136.50 | 117.50 | 155.00 | 446.00 | 624.00 | 1121.50 | 1460.50 | 9341.50 | |||||||||||||
| 1989 | 1509.50 | 1369.00 | 986.00 | 698.50 | 515.50 | 349.00 | 109.50 | 215.00 | 362.00 | 719.50 | 1048.00 | 1472.00 | 9353.50 | |||||||||||||
| 1990 | 1373.50 | 1216.50 | 1031.00 | 530.00 | j | 597.50 | 231.50 | 167.50 | 172.50 | 290.50 | 729.00 | 1028.50 | 1586.50 | 8424.50 | ||||||||||||
| 1991 | 1504.50 | 1126.50 | 1160.00 | 888.00 | 529.00 | 293.00 | 173.50 | 151.00 | 399.00 | 732.50 | 1146.00 | 1373.00 | 9476.00 | |||||||||||||
| 1992 | 1479.00 | 1204.00 | 1008.00 | 648.00 | 472.00 | 281.00 | 148.50 | 125.00 | 271.50 | 525.50 | 1187.50 | 1330.50 | 8680.50 | |||||||||||||
| 1993 | 1242.00 | 1119.50 | 994.00 | 765.50 | 428.00 | 254.00 | 148.00 | 144.50 | 324.00 | 666.50 | 1168.50 | 1312.50 | 8567.00 | |||||||||||||
| 1994 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 89.50 | 330.00 | 749.50 | 1186.00 | 1298.00 | 3653.00 | ||||||
| 1995 | 1456.50 | 1033.50 | 1100.50 | 895.50 | 712.50 | 397.00 | 189.50 | 102.50 | 380.00 | 811.50 | 955.50 | 1283.00 | 9317.50 | |||||||||||||
| 1996 | 1470.50 | 1299.00 | 1171.50 | 872.50 | 496.00 | 257.00 | 102.00 | 138.50 | 438.00 | 767.00 | 1079.00 | 1479.50 | 9570.50 | |||||||||||||
| 1997 | 1462.00 | 1272.00 | 1082.50 | 956.50 | 577.00 | 236.50 | 141.50 | 173.00 | 331.50 | 734.50 | 1130.00 | 1434.50 | 9531.50 | |||||||||||||
| 1998 | 1333.00 | 1178.00 | 1230.00 | 889.50 | 514.50 | 417.00 | 65.00 | 132.00 | 249.00 | 709.00 | 983.50 | 1415.50 | 9116.00 | |||||||||||||
| 1999 | 1316.00 | 1160.00 | 980.00 | 871.50 | 662.50 | 333.50 | 84.73 | a | 164.00 | 475.00 | 725.50 | 871.00 | 1378.50 | 9022.23 | ||||||||||||
| 2000 | 1312.00 | 1106.50 | 1062.50 | 708.62 | a | 495.00 | 265.00 | 60.00 | 77.00 | 352.00 | 700.50 | 1381.00 | 1442.00 | 8962.12 | ||||||||||||
| 2001 | 1494.00 | 1208.00 | 1092.00 | 742.00 | 521.50 | 244.50 | 51.50 | 99.00 | 297.00 | 686.50 | 971.00 | 1463.50 | 8870.50 | |||||||||||||
| 2002 | 1500.00 | 1375.00 | 1328.00 | 696.50 | 553.00 | 175.50 | 38.50 | 149.00 | 352.50 | 804.50 | 1243.50 | 1380.00 | 9596.00 | |||||||||||||
| 2003 | 1225.50 | 1302.00 | 1119.50 | 759.50 | 539.00 | 338.50 | 27.00 | 81.50 | 425.50 | 597.50 | 1153.50 | 1318.50 | 8887.50 | |||||||||||||
| 2004 | 1405.00 | 1300.50 | 970.00 | 728.00 | 532.50 | 296.50 | 162.00 | 209.00 | 388.00 | 696.00 | 1077.50 | 1371.50 | 9136.50 | |||||||||||||
| 2005 | 1252.50 | 1191.50 | 1142.00 | 808.00 | 569.50 | 359.50 | 100.00 | 182.00 | 356.50 | 658.50 | 1080.00 | 1497.00 | 9197.00 | |||||||||||||
| 2006 | 1390.00 | 1332.50 | 1175.50 | 716.90 | a | 491.00 | 0.00 | z | 5.50 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 5105.90 | |||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 1414.00 | 1224.21 | 1128.00 | 824.34 | 556.15 | 297.70 | 122.43 | 159.46 | 383.83 | 715.25 | 1087.32 | 1388.42 | 9304.27 | |||||||||||||
| S.D. | 110.90 | 93.71 | 112.55 | 109.12 | 65.75 | 65.51 | 44.78 | 51.11 | 66.91 | 84.37 | 112.78 | 107.80 | 393.06 | |||||||||||||
| SKEW | -0.07 | 0.13 | 0.33 | 0.30 | 0.30 | -0.15 | -0.36 | 0.27 | 0.08 | 0.62 | 0.27 | -0.86 | -0.23 | |||||||||||||
| MAX | 1665.50 | 1399.00 | 1411.00 | 1019.00 | 712.50 | 417.00 | 199.50 | 268.50 | 523.00 | 923.00 | 1381.00 | 1591.00 | 10173.82 | |||||||||||||
| MIN | 1173.50 | 1033.50 | 942.00 | 633.10 | 428.00 | 136.50 | 27.00 | 77.00 | 249.00 | 525.50 | 871.00 | 1037.00 | 8345.03 | |||||||||||||
| NO YRS | 40 | 39 | 40 | 39 | 40 | 37 | 38 | 39 | 39 | 41 | 41 | 41 | 35 | |||||||||||||