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 65 48 22 2 2000-01 295 441 0 46 67 53 50 43 24 12 2001-02 540 443 13 50 124 117 66 124 28 16 2002-03 277 440 0 0 73 51 23 86 28 16 2003-04 381 439 1 74 125 97 46 37 1 0 2004-05 216 435 2 19 57 35 23 65 15 0 2005-06 446 435 1 88 61 175 71 41 9 0 2006-07 389 445 3 111 96 68 62 37 11 1 2007-08 594 448 1 23 173 131 99 85 82 1 Averages 5.34 51.08 97.42 104.58 74.92 70.98 26.03 3.41 Snow Storm Data YEARS 24 HRS WITH OVER 10" SNOWFALL 24 HRS OVER 20" SNOWFALL 48 HRS OVER 24" SNOWFALL 48 HRS W/24" SNOWFALL W/SNOWPACK DEPTH OF 140" OR MORE 1973-74 12 0 8 5 1974-75 13 4 12 2 1975-76 17 0 1 1 1976-77 4 0 1 0 1977-78 3 0 0 0 1978-79 8 2 2 0 1979-80 8 1 3 0 1980-81 2 0 0 0 1981-82 13 2 2 0 1982-83 8 0 0 0 1983-84 5 0 1 0 1984-85 14 2 1 0 1985-86 12 1 1 0 1986-87 8 0 0 0 1987-88 7 0 0 0 1988-89 9 1 2 0 1989-90 19 2 11 0 1990-91 9 2 0 0 1991-92 9 0 0 0 1992-93 5 1 2 0 1993-94 6 0 1 0 1994-95 9 0 0 0 1995-96 7 0 1 0 1996-97 17 2 7 1 1997-98 9 1 2 0 1998-99 20 2 3 0 1999-00 9 1 1 0 2000-01 4 0 0 0 2001-02 16 1 1 2 2002-03 4 0 0 0 2003-04 6 0 0 0 2004-05 5 1 1 0 2005-06 14 0 0 0 2006-07 9 1 1 0 2007-08 19 1 6 1 Totals 339 28 71 12 This Site Developed and Maintained by: Barker Consulting 34808 Hassinger Road Lenore, ID. 83541

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