| YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1974 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 911.00 | 673.45 | a | 310.00 | 78.10 | a | 7.23 | a | 1979.79 | |||
| 1975 | 25.32 | a | 39.00 | 81.00 | 108.50 | 469.50 | 696.50 | 1035.50 | 828.00 | 722.00 | 307.50 | 86.25 | b | 30.48 | a | 4429.55 | ||||||||||
| 1976 | 0.00 | 56.96 | a | 105.00 | 224.00 | 627.50 | 718.50 | 981.00 | 744.50 | 664.00 | 311.50 | 128.50 | 0.00 | 4561.46 | ||||||||||||
| 1977 | 0.00 | b | 44.07 | a | 70.50 | 357.50 | 318.50 | 909.00 | 970.82 | a | 975.00 | 628.50 | 376.13 | a | 117.69 | d | 63.00 | 4830.72 | ||||||||
| 1978 | 15.50 | 27.00 | 225.27 | a | 215.89 | b | 430.50 | 688.45 | a | 969.00 | 863.00 | 528.89 | c | 377.50 | 51.72 | a | 1.11 | c | 4393.83 | |||||||
| 1979 | 6.64 | c | 31.00 | 109.57 | b | 183.00 | f | 591.07 | a | 726.92 | d | 990.93 | b | 876.61 | d | 705.00 | 419.03 | b | 33.00 | 12.06 | d | 4501.83 | ||||
| 1980 | 33.00 | f | 60.50 | 31.00 | i | 296.00 | 280.00 | m | 463.50 | k | 983.22 | a | 797.73 | a | 543.75 | b | 270.50 | 83.08 | d | 6.00 | i | 3034.78 | ||||
| 1981 | 11.22 | b | 80.89 | a | 94.55 | a | 325.00 | 519.00 | 767.31 | d | 0.00 | z | 782.23 | a | 719.00 | 242.50 | 102.50 | j | 42.00 | 3583.70 | ||||||
| 1982 | 2.50 | 86.50 | 49.50 | 195.50 | 555.00 | 742.00 | 965.50 | 713.50 | g | 612.00 | 304.50 | 38.50 | 34.00 | 3585.50 | ||||||||||||
| 1983 | 12.00 | 69.50 | 117.00 | 150.50 | 504.50 | 735.50 | 861.50 | 925.00 | 666.72 | a | 341.00 | 52.00 | m | 38.00 | 4421.22 | |||||||||||
| 1984 | 0.00 | 11.50 | 127.50 | 204.50 | 594.50 | 693.50 | 1087.50 | 1008.53 | a | 658.00 | 206.00 | 58.50 | 2.00 | 4652.03 | ||||||||||||
| 1985 | 0.00 | 10.00 | 49.08 | a | 371.50 | 534.00 | 917.00 | 1066.50 | 860.00 | 462.93 | a | 162.00 | i | 33.00 | 4.00 | 4308.01 | ||||||||||
| 1986 | 25.00 | 112.00 | a | 253.50 | 294.00 | 542.50 | 874.00 | 569.50 | l | 1046.00 | 436.50 | 130.50 | o | 65.00 | 6.50 | 3655.00 | ||||||||||
| 1987 | 7.50 | 40.00 | 157.50 | 378.10 | a | 636.50 | 835.00 | 928.50 | 1014.00 | 754.50 | 461.50 | 94.00 | 62.00 | 5369.10 | ||||||||||||
| 1988 | 2.58 | a | 31.00 | 136.00 | 333.00 | 510.00 | 955.50 | 495.50 | r | 1049.02 | c | 689.50 | 544.00 | 122.00 | 0.50 | 4373.10 | ||||||||||
| 1989 | 2.00 | 53.41 | a | 249.55 | a | 437.00 | 544.50 | 847.00 | 1094.00 | 873.00 | 692.00 | 361.50 | 56.50 | 7.50 | 5217.96 | |||||||||||
| 1990 | 25.00 | 23.00 | 203.50 | 309.00 | i | 489.50 | 810.50 | 1069.00 | 993.50 | 807.50 | 436.00 | 75.50 | 4.50 | 4937.50 | ||||||||||||
| 1991 | 0.00 | 66.50 | 76.00 | 241.00 | 387.00 | 671.50 | 1081.00 | 1042.63 | a | 749.00 | 484.50 | 116.00 | 3.00 | 4918.13 | ||||||||||||
| 1992 | 1.50 | 85.00 | 202.50 | 479.00 | 753.50 | 802.00 | 1007.50 | 1031.50 | 732.50 | 465.00 | 61.50 | 15.50 | 5637.00 | |||||||||||||
| 1993 | 0.00 | 9.00 | 282.00 | 285.00 | 631.50 | 647.50 | 886.50 | 884.02 | a | 684.50 | 387.00 | 36.50 | 11.50 | 4745.02 | ||||||||||||
| 1994 | 5.50 | 42.50 | 225.50 | 391.20 | e | 610.50 | 841.50 | 1149.50 | 1008.50 | 708.00 | 327.00 | 35.00 | 8.00 | 5352.70 | ||||||||||||
| 1995 | 46.00 | 142.00 | 143.50 | 240.00 | 463.50 | 662.00 | 966.50 | 963.50 | 764.50 | 383.00 | 214.00 | 112.00 | 5100.50 | |||||||||||||
| 1996 | 30.50 | 114.00 | 142.00 | 314.50 | 555.00 | 799.00 | 1120.00 | 1002.50 | 636.50 | 398.50 | 114.50 | 76.50 | 5303.50 | |||||||||||||
| 1997 | 61.00 | 43.00 | 238.00 | 298.00 | 678.26 | b | 746.50 | 977.00 | 1015.50 | 741.50 | 338.50 | 111.50 | 0.00 | 5248.76 | ||||||||||||
| 1998 | 55.50 | 30.50 | 154.48 | a | 207.00 | 356.00 | 688.00 | 0.00 | z | 1043.00 | 754.50 | 288.50 | 78.50 | 34.50 | 3690.48 | |||||||||||
| 1999 | 44.20 | d | 65.00 | 125.03 | a | 250.96 | d | 539.18 | c | 772.00 | 1038.00 | 961.00 | d | 694.00 | 280.00 | k | 178.00 | 12.00 | 4679.38 | |||||||
| 2000 | 51.50 | 95.92 | c | 150.00 | 385.00 | 617.50 | 898.50 | 0.00 | z | 0.00 | z | 676.55 | a | 360.63 | a | 31.67 | c | 1.50 | i | 3267.27 | ||||||
| 2001 | 0.00 | x | 24.50 | 238.50 | 287.68 | b | 758.97 | b | 0.00 | z | 373.00 | t | 141.50 | z | 0.00 | z | 294.50 | g | 133.50 | 10.85 | a | 1453.99 | ||||
| 2002 | 6.00 | 37.50 | 104.00 | 327.50 | 473.00 | 827.00 | 1206.00 | 1020.00 | 710.50 | 295.50 | 65.00 | 19.50 | 5091.50 | |||||||||||||
| 2003 | 108.00 | 6.09 | e | 173.17 | b | 120.00 | g | 583.46 | c | 822.50 | 1225.00 | 1015.52 | b | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 3933.74 | ||||
| 2004 | 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 | |
| 2005 | 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 | |
| 2006 | 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 | |
| 2007 | 0.00 | i | 28.61 | e | 214.50 | 318.00 | 0.00 | z | 861.92 | d | 961.00 | g | 1119.50 | 356.50 | i | 301.50 | 119.50 | g | 0.00 | z | 2844.03 | |||||
| 2008 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 732.00 | 394.98 | b | 107.50 | 3.50 | 1237.98 | ||||
| 2009 | 6.64 | c | 36.50 | 107.50 | 263.00 | 748.50 | 764.50 | 1156.50 | 996.00 | 829.50 | 303.50 | 0.00 | z | 0.00 | z | 5212.14 | ||||||||||
| 2010 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 296.00 | 766.50 | 712.50 | j | 550.00 | m | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 1062.50 | |||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 19.70 | 51.71 | 153.52 | 292.10 | 543.96 | 782.92 | 1034.02 | 953.46 | 679.26 | 357.05 | 85.88 | 22.20 | 4990.12 | |||||||||||||
| S.D. | 25.73 | 33.59 | 65.66 | 84.76 | 117.19 | 82.83 | 94.20 | 93.60 | 89.99 | 76.56 | 44.93 | 27.44 | 377.17 | |||||||||||||
| SKEW | 1.75 | 0.88 | 0.25 | 0.04 | -0.15 | 0.23 | 0.29 | -0.58 | -1.10 | 0.42 | 0.95 | 1.71 | -0.12 | |||||||||||||
| MAX | 108.00 | 142.00 | 282.00 | 479.00 | 758.97 | 955.50 | 1225.00 | 1119.50 | 829.50 | 544.00 | 214.00 | 112.00 | 5637.00 | |||||||||||||
| MIN | 0.00 | 6.09 | 49.08 | 108.50 | 296.00 | 647.50 | 861.50 | 744.50 | 436.50 | 206.00 | 31.67 | 0.00 | 4393.83 | |||||||||||||
| NO YRS | 28 | 31 | 30 | 28 | 30 | 30 | 24 | 29 | 30 | 28 | 28 | 28 | 15 | |||||||||||||