2009 Seattle Weather highlights (from SEA NWS):

• SEATAC AIRPORT HAD 29 CONSECUTIVE DAYS FROM MAY 20 THROUGH JUNE 17 WITHOUT MEASURABLE PRECIPITATION TYING THE DRIEST SPRING STRETCH SET IN 1982 FROM MAY 28 THROUGH JUNE 25.
• QUILLAYUTE AND HOQUIAM RECORDED THEIR SECOND WETTEST NOVEMBERS ON RECORD. QUILLAYUTE RECEIVED 26.55 INCHES OF RAIN DURING THE MONTH AMOUNTING TO THE FOURTH WETTEST MONTH ON RECORD - THE RECORD WAS 29.14 INCHES SET IN NOVEMBER 1983. HOQUIAM RECEIVED 18.53 INCHES IN NOVEMBER...SECOND TO THE WETTEST NOVEMBER WITH 21.17 INCHES IN 2006.
• SEATAC AIRPORT REACHED 103 DEGREES ON THE 29TH BREAKING THE PREVIOUS ALL-TIME HIGH RECORD OF 100 SET IN JULY 1994...104 DEGREES AT OLYMPIA TYING THE ALL-TIME RECORD SET IN JULY 1994 AND BELLINGHAM AT 96 DEGREES BREAKING THE OLD RECORD OF 94 DEGREES.
• THE HEAT WAVE INCLUDING A SCORCHING 105 DEGREES ON THE 29TH AT THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN SEATTLE.
• THE AVERAGE JULY TEMPERATURE OF 69.5 DEGREES WAS THE WARMEST JULY ON RECORD AT THE AIRPORT GOING BACK TO 1945...AND TYING THE ALL-TIME WARMEST JULY SET IN 1941 AT THE DOWNTOWN FEDERAL BUILDING.
• THE COLDEST TEMPERATURES OF THE YEAR OCCURRED IN EARLY DECEMBER DESPITE THE SUNSHINE AND LACK OF SNOW ON THE GROUND. A NUMBER OF DAILY RECORD LOWS FELL AROUND THE REGION INCLUDING THREE CONSECUTIVE DAYS OF 6 ABOVE ZERO AT OLYMPIA ON THE 8TH...9TH AND 10TH.

RECORD TEMPERATURES AND PRECIPITATION SET IN 2009

SEA-TAC AIRPORT HIGH LOW PRECIPITATION 02/04 63(T) 03/21 29(T) 01/06 1.22(T)
04/20 74 12/09 18 01/07 2.29
06/03 89 12/10 16 04/01 0.39(T)
06/04 91 04/02 0.92
07/28 97(T) 04/12 0.83
07/29 103 - ALL TIME 05/05 0.59
07/30 96 05/06 0.89
08/02 89(T) 08/11 0.32
08/27 88(T) 09/06 0.93
09/11 87 10/17 1.24
12/20 57(T) 11/26 1.34

Hakim Weather Satisfication Index (Courtesy of Neal Johnson)

year High Low Precip Gust HWSI

1996: 91 10 22.13 33 136.13
1997: 88 21 43.61 41 151.61
1998: 97 15 35.56 37 154.56
1999: 87 30 37.24 42 136.24
2000: 88 5 26.64 43 152.64
2001: 88 26 35.11 36 133.11
2002: 94 25 30.03 42 141.03
2003: 93 25 37.46 39 144.46
2004: 96 20 25.36 36 137.36
2005: 89 23 27.96 38 131.96
2006: 97 18 46.45 60 185.45
2007: 98 19 38.79 41 158.79
2008: 92 14 29.97 42 149.97
2009: 103 16 37.26 36 160.26