YEAR(S | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1981 | 0.00 | z | 312.15 | a | 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 | 312.15 | |
1982 | 339.50 | 283.65 | e | 323.00 | 352.00 | 446.18 | c | 471.50 | 536.50 | 588.00 | 520.86 | a | 495.50 | 426.00 | 336.00 | 5118.69 | ||||||||||
1983 | 0.00 | z | 298.00 | 382.50 | 393.50 | 422.00 | 448.50 | 486.50 | 515.50 | 504.50 | 494.00 | 416.50 | 354.00 | 4715.50 | ||||||||||||
1984 | 387.50 | a | 317.50 | 378.72 | a | 371.50 | 414.50 | 423.50 | 471.00 | 468.10 | a | 469.00 | 481.05 | c | 414.00 | 313.50 | 4909.87 | |||||||||
1985 | 259.50 | 261.50 | 297.00 | 310.20 | e | 452.00 | 433.50 | 492.50 | 497.00 | 500.00 | 472.50 | 390.00 | 0.00 | z | 4365.70 | |||||||||||
1986 | 320.00 | 313.00 | 442.50 | 407.00 | 481.00 | 495.50 | 550.00 | 579.50 | 541.00 | 543.02 | a | 456.50 | 344.00 | 5473.02 | ||||||||||||
1987 | 309.00 | 256.50 | 330.50 | 343.00 | 368.38 | a | 467.00 | 521.00 | 534.00 | 556.50 | 517.50 | 432.00 | 365.50 | 5000.88 | ||||||||||||
1988 | 313.50 | 327.50 | 364.00 | 381.00 | 442.50 | 443.00 | 472.50 | 489.11 | d | 476.50 | 476.00 | 453.50 | 370.50 | 5009.61 | ||||||||||||
1989 | 328.50 | 265.50 | 343.50 | 347.00 | 430.00 | 452.50 | 477.50 | 490.00 | 458.50 | 486.50 | 403.50 | 319.50 | 4802.50 | |||||||||||||
1990 | 279.00 | 236.00 | 282.00 | 361.00 | 407.50 | 426.00 | 490.50 | 515.00 | 495.50 | 478.00 | 392.50 | 307.93 | a | 4670.93 | ||||||||||||
1991 | 277.00 | 290.50 | 317.50 | 262.50 | g | 376.50 | 390.00 | 447.50 | 483.00 | 461.00 | 425.00 | 393.50 | 332.98 | b | 4194.48 | |||||||||||
1992 | 249.55 | a | 244.00 | 306.00 | 345.50 | 398.50 | 436.50 | 481.00 | 492.50 | 476.25 | b | 485.15 | a | 375.00 | c | 343.50 | 4633.45 | |||||||||
1993 | 224.75 | a | 209.50 | 286.75 | a | 342.50 | 365.50 | 421.50 | 453.38 | c | 481.00 | 479.50 | 456.00 | 346.50 | 297.50 | 4364.38 | ||||||||||
1994 | 250.00 | 253.00 | 312.50 | 336.00 | 403.00 | 404.50 | 473.00 | 499.50 | 490.50 | 461.50 | 378.50 | 286.23 | a | 4548.23 | ||||||||||||
1995 | 251.62 | a | 228.15 | a | 336.50 | 336.43 | b | 394.50 | 413.79 | a | 479.47 | a | 475.85 | a | 464.00 | 441.50 | 415.00 | 352.37 | a | 4589.17 | ||||||
1996 | 334.00 | 266.50 | 284.17 | a | 383.50 | 451.50 | 458.00 | 500.50 | 480.00 | 459.00 | 466.50 | 392.50 | 283.65 | a | 4759.82 | |||||||||||
1997 | 266.08 | a | 276.00 | 302.50 | 350.00 | 403.50 | 432.50 | 467.00 | 476.00 | 477.50 | 445.00 | 359.50 | 283.00 | 4538.58 | ||||||||||||
1998 | 249.50 | 237.00 | 299.50 | 316.00 | 309.50 | 352.00 | 409.50 | 443.00 | 410.50 | 402.00 | 347.50 | 281.50 | 4057.50 | |||||||||||||
1999 | 254.00 | 221.00 | 286.00 | 288.50 | 372.50 | 356.00 | 396.00 | 409.50 | 385.00 | 363.50 | 329.50 | 281.07 | a | 3942.57 | ||||||||||||
2000 | 235.50 | 225.50 | 300.00 | 285.00 | 377.50 | 392.00 | 444.50 | 462.00 | 425.69 | a | 425.50 | 326.38 | a | 274.50 | 4174.07 | |||||||||||
2001 | 280.50 | 237.48 | a | 278.48 | a | 300.00 | 352.00 | 369.83 | a | 413.33 | a | 459.00 | 432.50 | 414.00 | 341.50 | 298.00 | 4176.63 | |||||||||
2002 | 270.00 | 221.50 | 287.50 | 361.50 | 383.50 | 401.00 | 452.50 | 446.50 | 400.50 | 395.00 | 343.97 | a | 305.00 | 4268.47 | ||||||||||||
2003 | 265.50 | 226.00 | 304.00 | 325.50 | 375.50 | 387.00 | 306.00 | i | 313.00 | k | 180.50 | j | 281.50 | h | 211.00 | l | 232.00 | i | 1883.50 | |||||||
2004 | 179.00 | k | 209.50 | j | 229.00 | i | 224.50 | j | 257.50 | k | 191.50 | p | 281.00 | k | 290.00 | l | 298.00 | j | 283.50 | k | 230.00 | l | 156.00 | p | 0.00 | |
2005 | 176.50 | k | 152.50 | j | 209.00 | k | 264.50 | i | 270.50 | j | 287.00 | i | 287.00 | k | 333.00 | i | 317.50 | i | 269.00 | j | 233.00 | j | 209.50 | j | 0.00 | |
2006 | 176.00 | k | 149.00 | i | 204.50 | i | 187.50 | k | 227.50 | i | 267.00 | i | 263.50 | k | 327.00 | i | 278.00 | j | 295.00 | i | 228.50 | k | 167.00 | k | 0.00 | |
2007 | 147.00 | j | 110.00 | i | 156.00 | j | 160.50 | j | 196.50 | i | 197.50 | k | 225.50 | j | 240.50 | i | 208.00 | k | 236.00 | h | 164.50 | j | 124.00 | k | 0.00 | |
2008 | 88.50 | j | 96.00 | i | 127.50 | l | 163.00 | h | 149.00 | k | 173.50 | j | 218.50 | i | 195.50 | k | 193.50 | i | 205.00 | i | 112.50 | o | 127.00 | j | 0.00 | |
2009 | 81.50 | k | 93.00 | i | 70.50 | l | 117.50 | i | 168.50 | k | 215.00 | i | 226.50 | i | 202.00 | m | 220.00 | i | 223.00 | j | 141.00 | l | 128.50 | i | 0.00 | |
2010 | 112.00 | l | 102.00 | j | 121.00 | i | 127.00 | i | 156.50 | k | 162.00 | j | 206.50 | j | 290.00 | j | 267.00 | k | 286.00 | k | 232.00 | l | 234.50 | j | 0.00 | |
2011 | 192.00 | k | 205.00 | i | 257.00 | i | 232.50 | k | 270.50 | j | 281.00 | i | 258.00 | k | 286.00 | k | 271.00 | k | 283.50 | j | 190.50 | n | 176.50 | m | 0.00 | |
2012 | 163.50 | m | 108.50 | q | 186.50 | l | 206.00 | k | 241.50 | j | 227.50 | l | 281.50 | j | 288.00 | k | 248.50 | l | 287.00 | k | 209.00 | l | 183.00 | m | 0.00 | |
2013 | 155.50 | l | 39.00 | w | 105.50 | t | 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 | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 283.07 | 261.19 | 320.23 | 344.60 | 401.25 | 421.62 | 472.17 | 489.72 | 470.68 | 458.32 | 387.33 | 316.51 | 4613.24 | |||||||||||||
S.D. | 41.19 | 35.33 | 40.93 | 32.93 | 39.58 | 37.58 | 38.62 | 41.47 | 43.49 | 43.09 | 39.14 | 31.15 | 404.71 | |||||||||||||
SKEW | 0.84 | 0.41 | 1.45 | -0.08 | -0.07 | -0.13 | -0.04 | 0.74 | -0.09 | -0.30 | 0.07 | 0.26 | 0.20 | |||||||||||||
MAX | 387.50 | 327.50 | 442.50 | 407.00 | 481.00 | 495.50 | 550.00 | 588.00 | 556.50 | 543.02 | 456.50 | 370.50 | 5473.02 | |||||||||||||
MIN | 224.75 | 209.50 | 278.48 | 285.00 | 309.50 | 352.00 | 396.00 | 409.50 | 385.00 | 363.50 | 326.38 | 274.50 | 3942.57 | |||||||||||||
NO YRS | 21 | 23 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 18 |