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Ober Strasse Avalanche Hazard Warning

Home  Forecasting Policies   Education Photos Signs     Snowqualmie Pass DOT Wx Plot Snowpack Depth                                       1973-74 through 2007-08 YEARS # OF DAYS 140" OR GREATER # OF DAYS 155" OR GREATER # OF DAYS 170" OR GREATER MAXIMUM DEPTH FOR YEAR & DATE 1973-74 45x 28x 13x 189"/Mar. 7 1974-75 3x 0x 0x 144"/Feb.21 1975-76 4x 0x 0x 150"/Mar.28 1976-77 0x 0x 0x 55"/Mar. 28 1977-78 0x 0x 0x 82"/Mar.14 1978-79 0x 0x 0x 120"/Feb.25 1979-80 0x 0x 0x 98"/Mar. 14 1980-81 0x 0x 0x 46"/ Dec. 6 1981-82 0x 0x 0x 118"/Feb. 13 1982-83 0x 0x 0x 84"/Feb.20 1983-84 0x 0x 0x 83"/ Feb.23 1984-85 0x 0x 0x 120"/Feb.11 1985-86 0x 0x 0x 94"/Feb.16 1986-87 0x 0x 0x 89"/Mar. 2 1987-88 0x 0x 0x 84"/Mar. 29 1988-89 0x 0x 0x 108"/ April 4 1989-90 0x 0x 0x 130"/Feb. 9 1990-91 0x 0x 0x 90"/Jan. 10 1991-92 0x 0x 0x 65"/Feb. 21 1992-93 0x 0x 0x 77"/ Jan. 22 1993-94 0x 0x 0x 98"/Feb. 22 1994-95 0x 0x 0x 103"/Jan. 19 1995-96 0x 0x 0x 76"/Jan. 29 1996-97 19x 1x 0x 158"/Mar. 16 1997-98 0x 0x 0x 108"/Mar. 10 1998-99 53x 21x 1x 170"/ Mar. 4 1999-00 0x 0x 0x 105"/Feb.2 2000-01 0x 0x 0x 77"/Feb. 18 2001-02 2x 0x 0x 146"/Mar. 20 2002-03 0x 0x 0x 74"/Mar. 10 2003-04 0x 0x 0x 93"/ Feb. 18 2004-05 0x 0x 0x 38"/April 30 2005-06 0x 0x 0x 127"/Mar. 8 2006-07 0x 0x 0x 113"/Mar. 1 2007-08 2x 0x 0x 152/Feb. 8 Snowqualmie Pass Monthly Snowfall Totals and Averages WINTER SEASON SEASON" SNOWFALL YEARLY" AVERAGE SNOFALL" OCTOBER SNOFALL" NOVEMBER SNOFALL" DECEMBER SNOFALL" JANUARY SNOFALL" FEBRUARY SNOFALL" MARCH SNOFALL" APRIL SNOFALL" MAY 1949-50 696 696 0 6 168 22 112 125 61 4 1950-51 590 643 0 74 98 185 86 147 0 0 1951-52 477 588 0 51 166 130 52 78 0 0 1952-53 460 556 0 6 102 115 82 86 58 11 1953-54 680 581 0 29 116 267 145 56 67 0 1954-55 630 589 0 6 113 82 111 221 97 0 1955-56 828 623 10 125 175 190 169 150 9 0 1956-57 517 610 36 56 31 114 133 127 20 0 1957-58 396 586 12 36 148 107 30 38 25 0 1958-59 419 569 0 81 44 93 59 113 18 11 1959-60 456 559 3 26 60 71 77 130 78 11 1960-61 505 555 0 102 56 96 124 84 41 2 1961-62 405 543 26 45 141 31 20 112 30 0 1962-63 236 521 4 43 41 24 25 81 11 7 1963-64 678 532 8 46 70 265 79 152 45 13 1964-65 501 530 0 94 138 150 96 22 1 0 1965-66 510 528 0 34 104 166 107 99 0 0 1966-67 483 526 0 26 85 140 96 101 34 1 1967-68 422 520 0 31 111 128 40 54 58 0 1968-69 615 525 3 42 192 243 102 33 0 0 1969-70 383 518 0 5 110 175 71 22 0 0 1970-71 492 517 4 49 149 186 79 2 1 0 1971-72 600 521 23 58 157 170 70 62 60 0 1972-73 233 509 0 14 170 77 15 42 15 0 1973-74 692 516 5 142 128 112 139 124 22 20 1974-75 504 516 0 58 111 126 111 63 35 0 1975-76 535 516 43 91 64 107 120 98 12 0 1976-77 191 505 0 2 19 23 35 112 0 0 1977-78 315 498 0 69 79 50 46 33 19 19 1978-79 350 493 0 39 74 44 141 26 26 0 1979-80 366 489 1 22 60 49 115 103 16 0 1980-81 219 481 0 40 43 13 25 21 77 0 1981-82 472 480 0 13 132 161 72 43 43 8 1982-83 336 476 14 68 107 56 47 25 19 0 1983-84 359 473 0 74 85 22 72 43 59 4 1984-85 443 472 31 103 140 3 90 60 16 0 1985-86 311 468 13 70 31 87 82 11 16 1 1986-87 300 463 0 36 67 102 39 46 10 0 1987-88 334 460 0 13 81 77 39 90 31 3 1988-89 410 459 0 84 44 134 55 64 29 0 1989-90 421 458 0 28 13 159 145 53 23 0 1990-91 367 456 7 45 113 68 11 82 41 0 1991-92 211 450 8 53 46 61 43 0 0 0 1992-93 266 446 0 57 122 51 10 22 4 0 1993-94 313 443 0 25 58 52 119 45 14 0 1994-95 411 442 12 127 105 68 45 35 19 0 1995-96 314 439 0 43 71 126 40 23 7 4 1996-97 602 443 26 90 182 70 72 129 24 9 1997-98 362 441 0 22 4 149 58 52 6 0 1998-99 603 444 0 65 146 102 164 82 19 25 1999-00 427 444 5 39 102 144