Historical weather forecast for Seattle's King County International Airport (KBFI, "Boeing Field")
Source: The Weather Underground, Inc.  http://www.wunderground.com
  Year: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Avg.
February 5 High 45.9 57.9 52.0 51.8 60.8 48.9 54.0 53.1 46.4 46.4 51.7
  Low 25.9 43.9 41.0 30.2 41.0 39.0 33.1 41.0 37.4 32.0 36.5
  Condition F   R   R R   R, T R     (Nothing) 46%
February 6 High 43.0 57.9 54.0 48.2 60.8 53.1 57.2 44.6 48.2 48.2 51.5 R Rain 46%
  Low 32.0 48.9 45.9 28.4 50.0 39.0 44.6 35.6 42.8 33.8 40.1 F Fog 24%
  Condition F F F, R     R R R, S R F   S Snow 10%
February 7 High 38.8 55.9 54.9 48.2 64.4 53.1 57.0 44.1 44.6 44.6 50.6 T Thunderstorms 2%
  Low 34.0 45.9 50.0 39.2 44.6 39.9 41.0 24.1 39.9 33.1 39.2
  Condition F, S F F, R     R R   R F  
February 8 High 45.0 57.9 56.8 44.6 60.8 45.0 54.0 43.0 51.8 41.0 50.0
  Low 23.9 41.9 48.9 32.0 42.8 37.0 41.0 24.1 37.0 35.6 36.4
  Condition     F, R   R R R R, S      
February 9 High 50.9 59.0 50.9 48.2 51.8 45.0 50.0 48.9 52.0 41.0 49.8
  Low 32.0 32.9 41.0 32.0 37.4 30.9 39.0 32.0 37.4 33.8 34.8
  Condition F, S   F, R   R S R R      
Historical Sky Conditions Summary
Source: http://www.beautifulseattle.com/skysum.asp
Year Cloud Cover Days Precipitation Days
Sunny Partly Cloudy Cloudy Rain Snow
2003 6 6 16 13   
2002 3 14 11 18   
2001 7 12 9 12 3
2000 5 11 13 20   
1999 0 11 17 25 1
1998 3 10 15 24   
1997 6 17 5 12   
1996 8 6 15 18 1
Likelihood 17% 38% 45% 63% 2%