YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 588.45 | c | 588.45 | |
1964 | 596.00 | 514.48 | b | 475.50 | g | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 177.00 | 210.00 | 281.00 | 505.00 | 573.00 | 2856.48 | |||||||
1965 | 599.50 | 528.50 | 511.50 | 454.50 | 441.00 | 289.00 | 195.50 | 109.00 | 175.86 | a | 260.00 | 368.50 | 593.50 | 4526.36 | ||||||||||||
1966 | 570.29 | b | 565.38 | b | 568.00 | 420.00 | 402.00 | 229.00 | 175.50 | 154.00 | 164.50 | 317.00 | 407.50 | 515.50 | 4488.68 | |||||||||||
1967 | 571.00 | 445.93 | a | 0.00 | z | 240.00 | p | 205.50 | k | 196.07 | b | 123.50 | 106.90 | b | 136.50 | 304.83 | d | 370.18 | b | 618.50 | 2873.41 | |||||
1968 | 590.55 | a | 406.50 | 461.00 | 485.50 | 372.52 | a | 177.00 | 150.72 | b | 160.88 | b | 0.00 | z | 300.50 | g | 441.96 | b | 614.12 | b | 3860.76 | |||||
1969 | 703.18 | a | 306.50 | m | 151.50 | t | 521.25 | b | 351.00 | 211.00 | 206.00 | 231.50 | 219.11 | b | 240.00 | h | 446.50 | 518.50 | 3408.04 | |||||||
1970 | 413.00 | g | 449.50 | 511.00 | 554.50 | 351.00 | 242.00 | 174.50 | 202.50 | 242.50 | 420.50 | 420.00 | 541.50 | 4109.50 | ||||||||||||
1971 | 294.50 | o | 543.00 | 672.00 | 533.79 | a | 440.00 | 316.03 | a | 209.00 | 111.08 | a | 176.90 | a | 380.50 | 496.00 | 660.00 | 4538.31 | ||||||||
1972 | 670.50 | 513.20 | a | 460.50 | 501.21 | a | 273.50 | h | 251.79 | b | 170.50 | b | 144.00 | 231.00 | 323.50 | 452.50 | 674.00 | 4392.69 | ||||||||
1973 | 618.50 | 426.00 | 576.00 | 469.50 | 358.05 | a | 257.59 | a | 217.00 | 250.00 | 196.03 | a | 357.00 | 500.50 | 499.50 | 4725.67 | ||||||||||
1974 | 645.50 | 550.50 | 540.29 | c | 452.68 | b | 419.69 | e | 288.21 | b | 213.38 | a | 157.00 | 186.96 | b | 248.50 | h | 454.62 | d | 576.94 | d | 4485.78 | ||||
1975 | 459.00 | g | 511.54 | b | 576.00 | 566.00 | 377.17 | a | 244.29 | b | 147.77 | a | 191.50 | 206.25 | b | 359.60 | a | 501.50 | 572.35 | d | 4253.96 | |||||
1976 | 587.93 | b | 570.72 | d | 620.50 | 427.00 | f | 194.00 | o | 266.54 | d | 121.00 | h | 101.50 | j | 117.00 | h | 172.50 | l | 263.00 | h | 341.50 | m | 2045.69 | ||
1977 | 458.00 | f | 320.50 | f | 469.00 | g | 330.00 | i | 319.50 | h | 141.00 | k | 81.50 | q | 73.50 | p | 0.00 | z | 0.00 | z | 470.00 | 470.50 | 940.50 | |||
1978 | 444.00 | 445.00 | 400.00 | 440.00 | 360.50 | 169.50 | 154.00 | 148.50 | 161.00 | 240.50 | 563.50 | 685.50 | 4212.00 | |||||||||||||
1979 | 634.50 | 522.50 | 469.00 | 414.00 | 282.00 | 224.50 | 102.50 | 84.50 | 53.50 | 205.00 | 418.50 | 436.50 | 3847.00 | |||||||||||||
1980 | 592.50 | 419.50 | 504.50 | 416.00 | 362.50 | 254.50 | 139.50 | a | 160.50 | 179.00 | 272.00 | 401.00 | 447.00 | 4148.50 | ||||||||||||
1981 | 413.00 | 412.00 | 473.00 | 419.00 | 349.00 | 175.50 | 142.50 | 118.50 | 138.50 | 314.65 | a | 396.50 | 483.00 | 3835.15 | ||||||||||||
1982 | 641.50 | 527.00 | 540.50 | 486.50 | 353.00 | 254.00 | 142.00 | 101.50 | 131.00 | 230.50 | 442.00 | 523.00 | 4372.50 | |||||||||||||
1983 | 471.50 | 32.50 | z | 166.50 | t | 104.50 | w | 353.83 | b | 210.50 | 114.50 | 82.50 | 114.00 | 280.50 | 383.00 | 521.32 | a | 2531.64 | ||||||||
1984 | 490.00 | 457.50 | 408.50 | 451.50 | 364.00 | 258.50 | 147.50 | 87.50 | 145.00 | 322.50 | 437.00 | 621.00 | 4190.50 | |||||||||||||
1985 | 570.00 | 518.50 | 579.50 | 406.00 | 364.00 | 204.00 | 162.50 | 154.00 | 205.00 | 338.50 | 587.00 | 615.00 | 4704.00 | |||||||||||||
1986 | 470.00 | 397.50 | 403.00 | 458.50 | 350.00 | 189.50 | 151.50 | 171.50 | 209.50 | 317.50 | 394.00 | 492.50 | 4005.00 | |||||||||||||
1987 | 526.50 | 436.50 | 455.50 | 376.50 | 257.62 | b | 203.04 | b | 192.00 | 124.00 | 179.00 | 234.00 | 398.00 | 548.50 | 3931.16 | |||||||||||
1988 | 565.00 | 488.00 | 518.00 | 402.00 | 368.50 | 231.00 | 125.00 | 179.00 | 199.00 | 233.00 | 435.50 | 563.50 | 4307.50 | |||||||||||||
1989 | 612.50 | 638.50 | 537.00 | 342.00 | 344.50 | 212.50 | 132.00 | 90.50 | 210.50 | 334.00 | 430.00 | 536.00 | 4420.00 | |||||||||||||
1990 | 551.50 | 562.50 | 500.00 | 402.00 | 336.00 | 235.50 | 84.00 | 115.50 | 109.50 | 340.00 | 471.00 | 739.00 | 4446.50 | |||||||||||||
1991 | 584.50 | 371.50 | 579.50 | 474.00 | 410.50 | 259.00 | 113.50 | 122.50 | 98.00 | 241.50 | 424.00 | 556.00 | 4234.50 | |||||||||||||
1992 | 520.50 | 396.00 | 394.00 | 326.00 | 232.00 | 187.00 | 92.00 | 98.00 | 149.00 | 238.00 | 435.50 | 601.00 | 3669.00 | |||||||||||||
1993 | 655.50 | 501.50 | 424.00 | 412.50 | 300.00 | 199.00 | 121.50 | 108.50 | 192.50 | 262.50 | 503.50 | 550.00 | 4231.00 | |||||||||||||
1994 | 500.00 | 534.00 | 484.00 | 432.00 | 302.50 | 257.50 | 189.50 | 92.50 | 157.00 | 325.00 | 611.00 | 595.50 | 4480.50 | |||||||||||||
1995 | 456.50 | 404.50 | 501.00 | 472.00 | 346.00 | 260.50 | 108.00 | 136.00 | 141.00 | 284.00 | 389.00 | 447.00 | 3945.50 | |||||||||||||
1996 | 538.50 | 463.50 | 502.00 | 392.50 | 379.50 | 248.50 | 193.00 | 181.50 | 210.50 | 357.50 | 454.50 | 516.00 | 4437.50 | |||||||||||||
1997 | 558.50 | 500.50 | 515.50 | 458.00 | 261.50 | 223.00 | 88.50 | 106.00 | 100.50 | 316.00 | 380.00 | 559.00 | 4067.00 | |||||||||||||
1998 | 444.00 | 449.00 | 492.50 | 477.50 | 385.50 | 247.00 | 167.00 | 120.00 | 190.00 | 349.00 | 469.00 | 629.00 | 4419.50 | |||||||||||||
1999 | 591.50 | 525.50 | 627.00 | 477.50 | 426.00 | 273.50 | 250.00 | 145.81 | d | 157.00 | 127.00 | m | 361.11 | c | 509.95 | a | 4344.88 | |||||||||
2000 | 500.50 | 402.00 | 541.00 | 388.97 | a | 360.00 | 278.00 | 243.50 | 276.50 | 310.50 | 366.50 | 418.50 | 348.00 | 4433.97 | ||||||||||||
2001 | 280.00 | 523.00 | 485.50 | 503.00 | 335.50 | 262.00 | 184.50 | 168.50 | 216.00 | 301.00 | 431.00 | 548.00 | 4238.00 | |||||||||||||
2002 | 616.50 | 476.52 | a | 585.00 | 459.64 | b | 409.00 | 263.50 | 144.67 | a | 165.85 | a | 225.00 | 390.50 | 397.50 | 482.50 | 4616.18 | |||||||||
2003 | 432.00 | 502.50 | 443.00 | 466.00 | 341.50 | 211.50 | 122.50 | 121.00 | 182.00 | 230.50 | 474.00 | 522.50 | 4049.00 | |||||||||||||
2004 | 524.00 | 479.00 | 461.00 | 364.50 | 318.00 | 224.50 | 131.50 | 0.00 | z | 190.50 | 331.50 | 465.50 | 492.50 | 3982.50 | ||||||||||||
2005 | 534.00 | 453.50 | 419.50 | 449.50 | 302.00 | 248.00 | 145.00 | 175.50 | 238.00 | 350.00 | 462.00 | 501.00 | 4278.00 | |||||||||||||
2006 | 465.50 | 507.00 | 577.00 | 467.00 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 2016.50 | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 547.11 | 483.49 | 508.34 | 447.20 | 353.17 | 235.84 | 155.58 | 144.40 | 177.89 | 305.84 | 445.56 | 549.67 | 4259.29 | |||||||||||||
S.D. | 83.97 | 59.43 | 67.79 | 53.88 | 48.47 | 34.20 | 41.42 | 45.73 | 47.94 | 53.06 | 56.33 | 74.13 | 268.82 | |||||||||||||
SKEW | -0.75 | 0.15 | 0.25 | -0.02 | -0.42 | -0.06 | 0.36 | 0.90 | -0.11 | -0.05 | 1.00 | 0.06 | -0.29 | |||||||||||||
MAX | 703.18 | 638.50 | 672.00 | 566.00 | 441.00 | 316.03 | 250.00 | 276.50 | 310.50 | 420.50 | 611.00 | 739.00 | 4725.67 | |||||||||||||
MIN | 280.00 | 371.50 | 394.00 | 326.00 | 232.00 | 169.50 | 84.00 | 82.50 | 53.50 | 205.00 | 361.11 | 348.00 | 3669.00 | |||||||||||||
NO YRS | 39 | 40 | 38 | 38 | 37 | 40 | 39 | 39 | 39 | 36 | 41 | 42 | 28 |