Snow Data

The table below was taken from WSDOT found here.

It shows snowfall measurements (inches) taken at the summit of Snoqualmie Pass starting in 1949-50 and continuing to now.

We’ve also added a column that shows whether or not the season was deemed to be an El Niño or La Niña according to NOAA – Source.

Season Total (inch) La Niña/El Niño Oct Nov Dec Jan Feb Mar Apr May Jun
1949-50 696 a 0 6 168 220 112 125 61 4 0
1950-51 590 0 74 98 185 86 147 0 0 0
1951-52 477 o 0 51 166 130 52 78 0 0 0
1952-53 460 0 6 102 115 82 86 58 11 0
1953-54 680 o 0 29 116 267 145 56 67 0 0
1954-55 630 a 0 6 113 82 111 221 97 0 0
1955-56 828 a 10 125 175 190 169 150 9 0 0
1956-57 517 36 56 31 114 133 127 20 0 0
1957-58 369 o 12 36 148 107 30 38 25 0 0
1958-59 419 o 0 81 44 93 59 113 18 11 0
1959-60 456 3 26 60 71 77 130 78 11 0
1960-61 505 0 102 56 96 124 84 41 2 0
1961-62 405 26 45 141 31 20 112 30 0 0
1962-63 236 4 43 41 24 25 81 11 7 0
1963-64 678 o 8 46 70 265 79 152 45 13 0
1964-65 501 a 0 94 138 150 96 22 1 0 0
1965-66 510 o 0 34 104 166 107 99 0 0 0
1966-67 483 0 26 85 140 96 101 34 1 0
1967-68 422 0 31 111 128 40 54 58 0 0
1968-69 615 o 3 42 192 243 102 33 0 0 0
1969-70 383 o 0 5 110 175 71 22 0 0 0
1970-71 492 a 4 49 149 186 79 24 1 0 0
1971-72 600 a 23 58 157 170 70 62 60 0 0
1972-73 233 o 0 14 70 77 15 42 15 0 0
1973-74 692 a 5 142 128 112 139 124 22 20 0
1974-75 504 a 0 58 111 126 111 63 35 0 0
1975-76 535 a 43 91 64 107 120 98 12 0 0
1976-77 191 o 0 2 19 23 35 112 0 0 0
1977-78 315 o 0 69 79 50 46 33 19 19 0
1978-79 350 0 39 74 44 141 26 26 0 0
1979-80 366 1 22 60 115 49 103 16 0 0
1980-81 219 0 40 43 13 25 21 77 0 0
1981-82 472 0 13 132 161 72 43 43 8 0
1982-83 336 o 14 68 107 56 47 25 19 0 0
1983-84 359 a 0 74 85 22 72 43 59 4 0
1984-85 443 a 31 103 140 3 90 60 16 0 0
1985-86 311 13 70 31 87 82 11 16 1 0
1986-87 300 o 0 36 67 102 39 46 10 0 0
1987-88 334 o 0 13 81 77 39 90 31 3 0
1988-89 410 a 0 84 44 134 55 64 29 0 0
1989-90 421 0 28 13 159 145 53 23 0 0
1990-91 367 7 45 113 68 11 82 41 0 0
1991-92 211 o 8 53 46 61 43 0 0 0 0
1992-93 266 0 57 122 51 10 22 4 0 0
1993-94 313 0 25 58 52 119 45 14 0 0
1994-95 411 o 12 127 105 68 45 35 19 0 0
1995-96 314 a 0 43 71 126 40 23 7 4 0
1996-97 602 26 90 182 70 72 129 24 9 0
1997-98 361 o 0 22 74 149 58 52 6 0 0
1998-99 603 a 0 65 146 102 164 82 19 25 0
1999-00 427 a 5 39 102 144 65 48 22 2 0
2000-01 295 a 0 46 67 53 50 43 24 12 0
2001-02 540 13 50 124 117 66 124 28 18 0
2002-03 277 o 0 0 73 51 23 86 28 16 0
2003-04 381 1 74 125 97 46 37 1 0 0
2004-05 216 o 2 19 57 35 23 65 15 0 0
2005-06 446 a 1 88 61 175 71 41 9 0 0
2006-07 389 o 3 111 96 68 62 37 11 1 0
2007-08 598 a 1 23 174 131 98 89 73 3 8
2008-09 433 0 7 131 74 24 143 46 8 0
2009-10 297 o 5 79 44 44 13 50 54 9 0
2010-11 497 a 1 79 112 48 78 94 84 3 -
2011-12 460 a